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Bhardwaj P, Sah K, Yadav V, Gulafshan S, Dhangur P, Srivastava U, Dwivedi GR, Murhekar M, Sharma B, Singh R. Molecular and serological evidence of chikungunya virus infection with high case fatality among pediatric population with acute encephalitis syndrome: first report from Eastern Uttar Pradesh, India. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04817-8. [PMID: 38557925 DOI: 10.1007/s10096-024-04817-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024]
Abstract
Acute encephalitis syndrome (AES) outbreaks in children of Eastern Uttar Pradesh (E-UP) region of India have been a longstanding public health issue, with a significant case fatality rate of 20-25%. Since past decade, a rise in chikungunya (CHIK) cases has been occurring, which is a reported etiology of AES. However, the burden of chikungunya virus (CHIKV) among pediatric AES (pAES) is unknown from E-UP. We included 238 hospitalized pAES cases. The presence of IgM antibodies for CHIKV, and Dengue virus (DENV) was tested, and RT-PCR was performed for CHIKV and DENV in serologically confirmed CHIKV and DENV pAES cases. Positive samples were sequenced using Sangers sequencing. Further, to check for co-infection, IgM antibodies for other AES etiologies including Japanese encephalitis virus (JEV), Leptospira and Orientia tsutsugamushi (OT) in serum were also investigated. IgM ELISA demonstrated 5.04% (12) positivity for CHIKV. Among CHIKV IgM positive, 3 (25%, 3/12) pAES patients died. CHIKV genome was detected in 3 pAES specimens. Among which, 2 CHIKV cases were also positive for OT DNA. Partially sequenced CHIKV were genotyped as ECSA. The overall finding indicates evidence of CHIKV infection with high case fatality among pAES patients from E-UP. This study advocates constant serological and molecular surveillance of CHIKV in AES endemic regions of India.
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Affiliation(s)
- Pooja Bhardwaj
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India.
| | - Kamlesh Sah
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Vishal Yadav
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Shahzadi Gulafshan
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Preeti Dhangur
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Utkarsh Srivastava
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Gaurav Raj Dwivedi
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Manoj Murhekar
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
- ICMR - National Institute of Epidemiology, Chennai, 600 077, India
| | - Bhupendra Sharma
- Department of Paediatrics, BRD Medical College, Gorakhpur, 273013, India
| | - Rajeev Singh
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India.
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Ahmed S, Salem A, Hamadan N, Khalfallah M, Alfaki M. Identification of the Hub Genes Involved in Chikungunya Viral Infection. Cureus 2024; 16:e57603. [PMID: 38707036 PMCID: PMC11069395 DOI: 10.7759/cureus.57603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2024] [Indexed: 05/07/2024] Open
Abstract
Background Chikungunya virus (CHIKV) infection poses a significant global health threat, necessitating a deeper understanding of its molecular mechanisms for effective management and treatment. This study aimed to understand the molecular and genetic mechanisms of CHIKV infection by analyzing microarray expression data. Methodology National Center for Biotechnology Information (NCBI) GEO2R with an adjusted p-value cut-off of <0.05 and |log2FC ≥ 1.5| was used to identify the differentially expressed genes involved in CHIKV infection using microarray data from the Gene Expression Omnibus (GEO) database, followed by enrichment analysis, protein-protein interaction (PPI) network construction, and, finally, hub gene identification. Results Analysis of the microarray dataset revealed 25 highly significant differentially expressed genes (DEGs), including 21 upregulated and four downregulated genes. PPI network analysis elucidated interactions among these DEGs, with hub genes such as ACTB and CTNNB1 exhibiting central roles. Enrichment analysis identified crucial pathways, including leukocyte transendothelial migration, regulation of actin cytoskeleton, and thyroid hormone signaling, implicating their involvement in CHIKV infection. Furthermore, the study highlights potential therapeutic targets such as ACTB and CTNNB1, which showed significant upregulation in infected cells. Conclusions These findings underscore the complex interplay between viral infection and host cellular processes, shedding light on novel avenues for diagnostic marker discovery and advancing antiviral strategies. In this study, we shed light on the molecular and genetic mechanisms of CHIKV infection and the potential role of ACTB and CTNNB1 genes.
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Affiliation(s)
- Sanaa Ahmed
- Pharmacology, Faculty of Pharmacy, University of Khartoum, Khartoum, SDN
| | - Ahmed Salem
- Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, CZE
| | - Nema Hamadan
- Histopathology and Cytology, University of Ibn Sina, Khartoum, SDN
| | - Maha Khalfallah
- Zoology, Faculty of Science, University of Khartoum, Khartoum, SDN
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Simmons CP, Donald W, Tagavi L, Tarivonda L, Quai T, Tavoa R, Noran T, Manikaoti E, Kareaua L, Abwai TT, Chand D, Rama V, Deo V, Deo KK, Tavuii A, Valentine W, Prasad R, Seru E, Naituku L, Ratu A, Hesketh M, Kenny N, Beebe SC, Goundar AA, McCaw A, Buntine M, Green B, Frossard T, Gilles JRL, Joubert DA, Wilson G, Duong LQ, Bouvier JB, Stanford D, Forder C, Duyvestyn JM, Pacidônio EC, Flores HA, Wittmeier N, Retzki K, Ryan PA, Denton JA, Smithyman R, Tanamas SK, Kyrylos P, Dong Y, Khalid A, Hodgson L, Anders KL, O’Neill SL. Successful introgression of wMel Wolbachia into Aedes aegypti populations in Fiji, Vanuatu and Kiribati. PLoS Negl Trop Dis 2024; 18:e0012022. [PMID: 38484041 PMCID: PMC10980184 DOI: 10.1371/journal.pntd.0012022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 03/29/2024] [Accepted: 02/25/2024] [Indexed: 04/01/2024] Open
Abstract
Pacific Island countries have experienced periodic dengue, chikungunya and Zika outbreaks for decades. The prevention and control of these mosquito-borne diseases rely heavily on control of Aedes aegypti mosquitoes, which in most settings are the primary vector. Introgression of the intracellular bacterium Wolbachia pipientis (wMel strain) into Ae. aegypti populations reduces their vector competence and consequently lowers dengue incidence in the human population. Here we describe successful area-wide deployments of wMel-infected Ae. aegypti in Suva, Lautoka, Nadi (Fiji), Port Vila (Vanuatu) and South Tarawa (Kiribati). With community support, weekly releases of wMel-infected Ae. aegypti mosquitoes for between 2 to 5 months resulted in wMel introgression in nearly all locations. Long term monitoring confirmed a high, self-sustaining prevalence of wMel infecting mosquitoes in almost all deployment areas. Measurement of public health outcomes were disrupted by the Covid19 pandemic but are expected to emerge in the coming years.
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Affiliation(s)
| | - Wesley Donald
- Ministry of Health, Government of Vanuatu, Port Vila, Vanuatu
| | - Lekon Tagavi
- Ministry of Health, Government of Vanuatu, Port Vila, Vanuatu
| | - Len Tarivonda
- Ministry of Health, Government of Vanuatu, Port Vila, Vanuatu
| | | | | | - Tebikau Noran
- Ministry of Health and Medical Services, Kiribati Government, Kiribati
| | - Erirau Manikaoti
- Ministry of Health and Medical Services, Kiribati Government, Kiribati
| | - Lavinia Kareaua
- Ministry of Health and Medical Services, Kiribati Government, Kiribati
| | | | - Dip Chand
- Ministry of Health and Medical Services, Government of Fiji, Suva, Fiji
| | - Vineshwaran Rama
- Ministry of Health and Medical Services, Government of Fiji, Suva, Fiji
| | - Vimal Deo
- Ministry of Health and Medical Services, Government of Fiji, Suva, Fiji
| | | | - Aminiasi Tavuii
- World Mosquito Program, Monash University, Clayton, Australia
| | | | | | | | | | - Anaseini Ratu
- World Mosquito Program, Monash University, Clayton, Australia
| | - Mark Hesketh
- World Mosquito Program, Monash University, Clayton, Australia
| | - Nichola Kenny
- World Mosquito Program, Monash University, Clayton, Australia
| | - Sarah C. Beebe
- World Mosquito Program, Monash University, Clayton, Australia
| | | | - Andrew McCaw
- World Mosquito Program, Monash University, Clayton, Australia
| | - Molly Buntine
- World Mosquito Program, Monash University, Clayton, Australia
| | - Ben Green
- World Mosquito Program, Monash University, Clayton, Australia
| | - Tibor Frossard
- World Mosquito Program, Monash University, Clayton, Australia
| | | | | | - Geoff Wilson
- World Mosquito Program, Monash University, Clayton, Australia
| | - Le Quyen Duong
- World Mosquito Program, Monash University, Clayton, Australia
| | - Jean B Bouvier
- World Mosquito Program, Monash University, Clayton, Australia
| | - Darren Stanford
- World Mosquito Program, Monash University, Clayton, Australia
| | - Carolyn Forder
- World Mosquito Program, Monash University, Clayton, Australia
| | | | | | | | | | - Kate Retzki
- World Mosquito Program, Monash University, Clayton, Australia
| | - Peter A. Ryan
- World Mosquito Program, Monash University, Clayton, Australia
| | - Jai A. Denton
- World Mosquito Program, Monash University, Clayton, Australia
| | - Ruth Smithyman
- World Mosquito Program, Monash University, Clayton, Australia
| | | | - Peter Kyrylos
- World Mosquito Program, Monash University, Clayton, Australia
| | - Yi Dong
- World Mosquito Program, Monash University, Clayton, Australia
| | - Anam Khalid
- World Mosquito Program, Monash University, Clayton, Australia
| | - Lauren Hodgson
- World Mosquito Program, Monash University, Clayton, Australia
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Kharwadkar S, Herath N. Clinical manifestations of dengue, Zika and chikungunya in the Pacific Islands: A systematic review and meta-analysis. Rev Med Virol 2024; 34:e2521. [PMID: 38340071 DOI: 10.1002/rmv.2521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/19/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
Dengue, Zika and chikungunya outbreaks pose a significant public health risk to Pacific Island communities. Differential diagnosis is challenging due to overlapping clinical features and limited availability of laboratory diagnostic facilities. There is also insufficient information regarding the complications of these arboviruses, particularly for Zika and chikungunya. We conducted a systematic review and meta-analysis to calculate pooled prevalence estimates with 95% confidence intervals (CI) for the clinical manifestations of dengue, Zika and chikungunya in the Pacific Islands. Based on pooled prevalence estimates, clinical features that may help to differentiate between the arboviruses include headache, haemorrhage and hepatomegaly in dengue; rash, conjunctivitis and peripheral oedema in Zika; and the combination of fever and arthralgia in chikungunya infections. We estimated that the hospitalisation and mortality rates in dengue were 9.90% (95% CI 7.67-12.37) and 0.23% (95% CI 0.16-0.31), respectively. Severe forms of dengue occurred in 1.92% (95% CI 0.72-3.63) of reported cases and 23.23% (95% CI 13.58-34.53) of hospitalised patients. Complications associated with Zika virus included Guillain-Barré syndrome (GBS), estimated to occur in 14.08 (95% CI 11.71-16.66) per 10,000 reported cases, and congenital brain malformations such as microcephaly, particularly with first trimester maternal infection. For chikungunya, the hospitalisation rate was 2.57% (95% CI 1.30-4.25) and the risk of GBS was estimated at 1.70 (95% CI 1.06-2.48) per 10,000 reported cases. Whilst ongoing research is required, this systematic review enhances existing knowledge on the clinical manifestations of dengue, Zika and chikungunya infections and will assist Pacific Island clinicians during future arbovirus outbreaks.
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Affiliation(s)
- Sahil Kharwadkar
- School of Public Health, The University of Adelaide, Adelaide, South Australia, Australia
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
| | - Nipun Herath
- Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia
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Jangir PK, Prasad A. Insecticide susceptibility status on Aedes aegypti (Linn) and Aedes albopictus (Skuse) of Chittorgarh district, Rajasthan, India. Exp Parasitol 2023; 254:108619. [PMID: 37739025 DOI: 10.1016/j.exppara.2023.108619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/12/2023] [Accepted: 09/08/2023] [Indexed: 09/24/2023]
Abstract
Vector-borne diseases are a major burden to human health. It accounts for more than 17% of the total infectious diseases and causes more than 0.7 million deaths annually. Mosquitoes are potential vectors for many vector-borne diseases that cause illness to public health, globally. Vector species of the genus Aedes i.e., Aedes aegypti and Aedes albopictus are the vector for many arboviruses such as dengue, chikungunya, yellow fever, and Zika in India. Dengue is one of the most prevalent viral infections causing a high number of cases throughout the world and resistance to insecticides can be a reason for the failure of vector control strategies. This study was carried out to check the degree of resistance among these vectors in the Chittorgarh district of Rajasthan, India through standard World Health Organization protocol. The resistance was monitored to pyrethroids i.e., deltamethrin (0.05%), permethrin (0.75%), alphacypermethrin (0.05%); organochlorine i.e., DDT (4%), and an organophosphate larvicide i.e., temephos (0.02 mg/L) in both vector species. Complete resistance to DDT was observed among all tested populations of both species. All tested populations of Aedes albopictus were found susceptible to pyrethroids. Aedes aegypti was found resistant in the Mangalwad population, unconfirmed resistant in Bhopalsagar and Rashmi populations while the remaining are susceptible to permethrin. The Mangalwad population was also found unconfirmed resistant to deltamethrin and alphacypermethrin. Larvae of both species were found susceptible to temephos. Decreasing the use of DDT will help to reduce the impact on human health and environmental contamination. However, temephos as a larvicide, deltamethrin, and alphacypermethrin as an adulticide can be used in critical disease outbreaks at a minimum concentration as mosquitoes are found susceptible in the study area.
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Affiliation(s)
- Pradeep Kumar Jangir
- Laboratory of Public Health Entomology, Department of Zoology, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India.
| | - Arti Prasad
- Department of Zoology, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India.
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Rabelo VWH, da Silva VD, Sanchez Nuñez ML, dos Santos Corrêa Amorim L, Buarque CD, Kuhn RJ, Abreu PA, Nunes de Palmer Paixão IC. Antiviral evaluation of 1,4-disubstituted-1,2,3-triazole derivatives against Chikungunya virus. Future Virol 2023; 18:865-880. [PMID: 37974899 PMCID: PMC10636642 DOI: 10.2217/fvl-2023-0142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/25/2023] [Indexed: 11/19/2023]
Abstract
Aim This work aimed to investigate the antiviral activity of two 1,4-disubstituted-1,2,3-triazole derivatives (1 and 2) against Chikungunya virus (CHIKV) replication. Materials & methods Cytotoxicity was analyzed using colorimetric assays and the antiviral potential was evaluated using plaque assays and computational tools. Results Compound 2 showed antiviral activity against CHIKV 181-25 in BHK-21 and Vero cells. Also, this compound presented a higher activity against CHIKV BRA/RJ/18 in Vero cells, like compound 1. Compound 2 exhibited virucidal activity and inhibited virus entry while compound 1 inhibited virus release. Molecular docking suggested that these derivatives inhibit nsP1 protein while compound 1 may also target capsid protein. Conclusion Both compounds exhibit promising antiviral activity against CHIKV by blocking different steps of virus replication.
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Affiliation(s)
- Vitor Won-Held Rabelo
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
| | - Verônica Diniz da Silva
- Laboratório de Síntese Orgânica, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, CEP, 22451-900, Brazil
| | - Maria Leonisa Sanchez Nuñez
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
| | - Leonardo dos Santos Corrêa Amorim
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Gerência de Desenvolvimento Tecnológico, Instituto Vital Brazil, Niterói, RJ, 24230-410, Brazil
| | - Camilla Djenne Buarque
- Laboratório de Síntese Orgânica, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, CEP, 22451-900, Brazil
| | - Richard J Kuhn
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
- Purdue Institute of Inflammation, Immunology, & Infectious Disease, Purdue University, West Lafayette, IN 47907, USA
| | - Paula Alvarez Abreu
- Instituto de Biodiversidade e Sustentabilidade (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, RJ, CEP, 27965-045, Brazil
| | - Izabel Christina Nunes de Palmer Paixão
- Programa de Pós-graduação em Ciências e Biotecnologia, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Departamento de Biologia Celular e Molecular, Instituto de Biologia, Universidade Federal Fluminense, Niterói, RJ, CEP, 24210-201, Brazil
- Programas de Pós-graduação em Biotecnologia Marinha e de Neurologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
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Grabenstein JD, Tomar AS. Global geotemporal distribution of chikungunya disease, 2011-2022. Travel Med Infect Dis 2023; 54:102603. [PMID: 37307983 DOI: 10.1016/j.tmaid.2023.102603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 01/06/2023] [Accepted: 06/03/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Chikungunya virus is a mosquito-borne alphavirus, transmitted by Aedes mosquitoes. Humans serve as the primary reservoir. Chikungunya infections typically appear with an abrupt onset of fever, rash, and severe joint pain. Some 40% of cases develop chronic rheumatologic complications that can persist months to years. OBJECTIVES To improve precision of risk characterization by analyzing cases of chikungunya by year and by country and depicting this geotemporal distribution in map form. METHOD Chikungunya case counts by year were compiled from national or regional health authorities from 2011 to 2022. These data were augmented by published reviews plus the Program for Monitoring Emerging Diseases (ProMED). Country-level distribution was categorized into four groups based on recency and magnitude. Data for India were mapped on a per-state basis. RESULTS The global map depicts distribution of chikungunya disease from 2011 through 2022. Most cases are reported in tropical and subtropical areas, but notable exceptions include the northern coast of the Mediterranean Sea. Countries of high recency and frequency include India, Brazil, Sudan, and Thailand. Countries with high frequency, but few cases reported in 2019-22 include many Latin American and Caribbean countries. Subnational foci are discussed in general and mapped for India. The range of Aedes mosquitoes is broader than the geography where chikungunya infection is typically diagnosed. CONCLUSIONS These maps help identify geographical regions where residents or travelers are at greatest risk of chikungunya. Once vaccines are licensed to help prevent chikungunya, maps like these can help guide future vaccine decision-making.
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Saba Villarroel PM, Gumpangseth N, Songhong T, Yainoy S, Monteil A, Leaungwutiwong P, Missé D, Wichit S. Emerging and re-emerging zoonotic viral diseases in Southeast Asia: One Health challenge. Front Public Health 2023; 11:1141483. [PMID: 37383270 PMCID: PMC10298164 DOI: 10.3389/fpubh.2023.1141483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/22/2023] [Indexed: 06/30/2023] Open
Abstract
The ongoing significant social, environmental, and economic changes in Southeast Asia (SEA) make the region highly vulnerable to the emergence and re-emergence of zoonotic viral diseases. In the last century, SEA has faced major viral outbreaks with great health and economic impact, including Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), arboviruses, highly pathogenic avian influenza (H5N1), and Severe Acute Respiratory Syndrome (SARS-CoV); and so far, imported cases of Middle East Respiratory Syndrome Coronavirus (MERS-CoV). Given the recent challenging experiences in addressing emerging zoonotic diseases, it is necessary to redouble efforts to effectively implement the "One Health" initiative in the region, which aims to strengthen the human-animal-plant-environment interface to better prevent, detect and respond to health threats while promoting sustainable development. This review provides an overview of important emerging and re-emerging zoonotic viral diseases in SEA, with emphasis on the main drivers behind their emergency, the epidemiological situation from January 2000 to October 2022, and the importance of One Health to promote improved intervention strategies.
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Affiliation(s)
- Paola Mariela Saba Villarroel
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Viral Vector Joint Unit and Joint Laboratory, Mahidol University, Nakhon Pathom, Thailand
| | - Nuttamonpat Gumpangseth
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Viral Vector Joint Unit and Joint Laboratory, Mahidol University, Nakhon Pathom, Thailand
| | - Thanaphon Songhong
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Viral Vector Joint Unit and Joint Laboratory, Mahidol University, Nakhon Pathom, Thailand
| | - Sakda Yainoy
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Arnaud Monteil
- Viral Vector Joint Unit and Joint Laboratory, Mahidol University, Nakhon Pathom, Thailand
- Plateforme de Vectorologie, BioCampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Pornsawan Leaungwutiwong
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Dorothée Missé
- MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France
| | - Sineewanlaya Wichit
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Viral Vector Joint Unit and Joint Laboratory, Mahidol University, Nakhon Pathom, Thailand
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Skalinski LM, Santos AES, Paixão E, Itaparica M, Barreto F, da Conceição Nascimento Costa M, Teixeira MG. Chikungunya seroprevalence in population-based studies: a systematic review and meta-analysis. Arch Public Health 2023; 81:80. [PMID: 37127721 PMCID: PMC10150504 DOI: 10.1186/s13690-023-01081-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 04/06/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND Seroprevalence studies about chikungunya infection are usually conducted after epidemics to estimate the magnitude of the attack. This study aimed to estimate the seroprevalence of CHIKV by WHO region, considering the periods of introduction of the virus in these regions and its potential to lead to epidemics. METHODS We systematically reviewed Medline/Pubmed, Embase, Lilacs, Scopus and Web of Science for original articles published up to 2020. Cohort, case-control and cross-sectional studies were eligible for inclusion, based on the results of laboratory diagnosis of previous or previous and recent infection. Those conducted with symptomatic individuals were excluded. RESULTS 596 articles were identified, 197 full-text were reviewed and 64 were included, resulting in 71 seroprevalences. Most were cross-sectional studies (92%), between 2001 and 2020 (92%), with population of all ages (55%), conducted in Kenya (10.9%), Brazil (9.4%) and French Polynesia (7.8%). The pooled estimates were 24% (95%CI 19-29; I2 = 99.7%; p < 0.00), being 21% (95%CI 13-30; I2 = 99.5%; p < 0.00) for adults, 7% (95%CI 0-23; I2 = 99.7%; p < 0.00) for children and 30% (95%CI 23-38; I2 = 99.7%; p < 0.00) for all ages. The higher seroprevalences were found in African, the Americas and South-East Asian Regions. CONCLUSIONS The great heterogeneity of seroprevalences points to the persistence of viral circulation. Even where the seroprevalence is high, the population replacement and the absence of vaccines mean that the risk of virus spread and epidemics remains. REGISTRATION PROSPERO CRD42020166227.
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Affiliation(s)
- Lacita Menezes Skalinski
- Universidade Estadual de Santa Cruz, Rodovia Jorge Amado, km 16, s/n, Salobrinho, Ilhéus, CEP 45662-900, BA, Brasil.
- Instituto de Saúde Coletiva/ Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Canela, Salvador, CEP 40110-040, BA, Brazil.
| | - Aline Elena Sacramento Santos
- Instituto de Saúde Coletiva/ Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Canela, Salvador, CEP 40110-040, BA, Brazil
| | - Enny Paixão
- London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT, UK
| | - Martha Itaparica
- Instituto de Saúde Coletiva/ Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Canela, Salvador, CEP 40110-040, BA, Brazil
| | - Florisneide Barreto
- Instituto de Saúde Coletiva/ Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Canela, Salvador, CEP 40110-040, BA, Brazil
| | | | - Maria Glória Teixeira
- Instituto de Saúde Coletiva/ Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Canela, Salvador, CEP 40110-040, BA, Brazil
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Novelo M, Dutra HLC, Metz HC, Jones MJ, Sigle LT, Frentiu FD, Allen SL, Chenoweth SF, McGraw EA. Dengue and chikungunya virus loads in the mosquito Aedes aegypti are determined by distinct genetic architectures. PLoS Pathog 2023; 19:e1011307. [PMID: 37043515 PMCID: PMC10124881 DOI: 10.1371/journal.ppat.1011307] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/24/2023] [Accepted: 03/19/2023] [Indexed: 04/13/2023] Open
Abstract
Aedes aegypti is the primary vector of the arboviruses dengue (DENV) and chikungunya (CHIKV). These viruses exhibit key differences in their vector interactions, the latter moving more quicky through the mosquito and triggering fewer standard antiviral pathways. As the global footprint of CHIKV continues to expand, we seek to better understand the mosquito's natural response to CHIKV-both to compare it to DENV:vector coevolutionary history and to identify potential targets in the mosquito for genetic modification. We used a modified full-sibling design to estimate the contribution of mosquito genetic variation to viral loads of both DENV and CHIKV. Heritabilities were significant, but higher for DENV (40%) than CHIKV (18%). Interestingly, there was no genetic correlation between DENV and CHIKV loads between siblings. These data suggest Ae. aegypti mosquitoes respond to the two viruses using distinct genetic mechanisms. We also examined genome-wide patterns of gene expression between High and Low CHIKV families representing the phenotypic extremes of viral load. Using RNAseq, we identified only two loci that consistently differentiated High and Low families: a long non-coding RNA that has been identified in mosquito screens post-infection and a distant member of a family of Salivary Gland Specific (SGS) genes. Interestingly, the latter gene is also associated with horizontal gene transfer between mosquitoes and the endosymbiotic bacterium Wolbachia. This work is the first to link the SGS gene to a mosquito phenotype. Understanding the molecular details of how this gene contributes to viral control in mosquitoes may, therefore, also shed light on its role in Wolbachia.
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Affiliation(s)
- Mario Novelo
- Department of Entomology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Heverton LC Dutra
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Department of Biology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Hillery C. Metz
- Department of Entomology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Matthew J. Jones
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Department of Biology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Leah T. Sigle
- Department of Entomology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Francesca D. Frentiu
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Herston, Queensland, Australia
| | - Scott L. Allen
- School of Biological Sciences, The University of Queensland, St. Lucia, Queensland, Australia
| | - Stephen F. Chenoweth
- School of Biological Sciences, The University of Queensland, St. Lucia, Queensland, Australia
| | - Elizabeth A. McGraw
- Center for Infectious Disease Dynamics, The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
- Department of Biology, The Pennsylvania State University, University Park, Pennsylvania, United States of America
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11
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Badoni G, Gupta PK, Gupta P, Kaistha N, Mathuria YP, Pai MO, Kant R. Dengue-chikungunya infection in the tertiary care hospital of northern India: Cross-sectional latent class cluster analysis in viral infection. Heliyon 2023; 9:e14019. [PMID: 36925523 PMCID: PMC10011203 DOI: 10.1016/j.heliyon.2023.e14019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Cases of dengue and chikungunya fever are escalating all over India. Both viruses share a common vector, the "Aedes" mosquito. Due to similar clinical symptoms, both the dengue (DENV) and chikungunya (CHIKV) virus can circulate as co-infection. There is very limited data available on dengue-chikungunya co-infection in Uttarakhand, India. The purpose of this study was to determine the seroprevalence of dengue and chikungunya virus infections, as well as their co-infection, in patients presenting with clinical symptoms. Serum samples of clinically suspected patients from the tertiary care hospital of Uttarakhand were collected, and Latent Class Cluster Analysis was performed for clinical profiling. ELISA was performed for DENV and CHIKV. 279 cases were enrolled, out of which 222 (79.5%) came positive for dengue NS1 Ag, 143 (51.2%) for dengue IgM, 98 (35.1%) for IgG followed by 16 (5.7%) of CHIKV IgM, and 4 (1.4%) were NS1 Ag with CHIKV IgM. Among the clinical features, fever (n = 270, 96.8%) was the most common symptom in all suspected dengue and chikungunya cases. Other symptoms like chills (n = 254, 91.0%), arthralgia (n = 241, 86.4%), and headache (n = 240, 86.0%) were present in a significant number. Results showed fewer odds of getting both DENV and CHIKV infection simultaneously, but the risk is still not negligible. This study explores the clinical presentation of the suspected dengue-chikungunya case. The increasing incidence of dengue and chikungunya and their co-infection necessitate the authorities' active surveillance of endemic regions and effective patient care management.
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Affiliation(s)
- Gaurav Badoni
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
| | - Puneet Kumar Gupta
- Department of Microbiology, All India Institute of Medical Sciences, Bilaspur, India
| | - Pratima Gupta
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
- Corresponding author.
| | - Neelam Kaistha
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
| | | | - Manju O. Pai
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, India
| | - Ravi Kant
- Department of General Medicine, All India Institute of Medical Sciences, Rishikesh, India
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12
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Sofyantoro F, Frediansyah A, Priyono DS, Putri WA, Septriani NI, Wijayanti N, Ramadaningrum WA, Turkistani SA, Garout M, Aljeldah M, Al Shammari BR, Alwashmi ASS, Alfaraj AH, Alawfi A, Alshengeti A, Aljohani MH, Aldossary S, Rabaan AA. Growth in chikungunya virus-related research in ASEAN and South Asian countries from 1967 to 2022 following disease emergence: a bibliometric and graphical analysis. Global Health 2023; 19:9. [PMID: 36747262 PMCID: PMC9901127 DOI: 10.1186/s12992-023-00906-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/09/2023] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND ASEAN (Association of Southeast Asian Nations) is composed of ten Southeast Asian countries bound by socio-cultural ties that promote regional peace and stability. South Asia, located in the southern subregion of Asia, includes nine countries sharing similarities in geographical and ethno-cultural factors. Chikungunya is one of the most significant problems in Southeast and South Asian countries. Much of the current chikungunya epidemic in Southeast Asia is caused by the emergence of a virus strain that originated in Africa and spread to Southeast Asia. Meanwhile, in South Asia, three confirmed lineages are in circulation. Given the positive correlation between research activity and the improvement of the clinical framework of biomedical research, this article aimed to examine the growth of chikungunya virus-related research in ASEAN and South Asian countries. METHODS The Scopus database was used for this bibliometric analysis. The retrieved publications were subjected to a number of analyses, including those for the most prolific countries, journals, authors, institutions, and articles. Co-occurrence mapping of terms and keywords was used to determine the current state, emerging topics, and future prospects of chikungunya virus-related research. Bibliometrix and VOSviewer were used to analyze the data and visualize the collaboration network mapping. RESULTS The Scopus search engine identified 1280 chikungunya-related documents published by ASEAN and South Asian countries between 1967 and 2022. According to our findings, India was the most productive country in South Asia, and Thailand was the most productive country in Southeast Asia. In the early stages of the study, researchers investigated the vectors and outbreaks of the chikungunya virus. In recent years, the development of antivirus agents has emerged as a prominent topic. CONCLUSIONS Our study is the first to present the growth of chikungunya virus-related research in ASEAN and South Asian countries from 1967 to 2022. In this study, the evaluation of the comprehensive profile of research on chikungunya can serve as a guide for future studies. In addition, a bibliometric analysis may serve as a resource for healthcare policymakers.
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Affiliation(s)
- Fajar Sofyantoro
- grid.8570.a0000 0001 2152 4506Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia ,grid.8570.a0000 0001 2152 4506Center for Tropical Biodiversity, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Andri Frediansyah
- PRTPP, National Research and Innovation Agency (BRIN), Yogyakarta, 55861, Indonesia.
| | - Dwi Sendi Priyono
- grid.8570.a0000 0001 2152 4506Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia ,grid.8570.a0000 0001 2152 4506Center for Tropical Biodiversity, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Wahyu Aristyaning Putri
- grid.8570.a0000 0001 2152 4506Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Nur Indah Septriani
- grid.8570.a0000 0001 2152 4506Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Nastiti Wijayanti
- Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
| | | | | | - Mohammed Garout
- grid.412832.e0000 0000 9137 6644Department of Community Medicine and Health Care for Pilgrims, Faculty of Medicine, Umm Al-Qura University, Makkah, 21955 Saudi Arabia
| | - Mohammed Aljeldah
- grid.494617.90000 0004 4907 8298Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin, 39831 Saudi Arabia
| | - Basim R. Al Shammari
- grid.494617.90000 0004 4907 8298Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, University of Hafr Al Batin, Hafr Al Batin, 39831 Saudi Arabia
| | - Ameen S. S. Alwashmi
- grid.412602.30000 0000 9421 8094Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, 51452 Saudi Arabia
| | - Amal H. Alfaraj
- Pediatric Department, Abqaiq General Hospital, First Eastern Health Cluster, Abqaiq, 33261 Saudi Arabia
| | - Abdulsalam Alawfi
- grid.412892.40000 0004 1754 9358Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah, 41491 Saudi Arabia
| | - Amer Alshengeti
- grid.412892.40000 0004 1754 9358Department of Pediatrics, College of Medicine, Taibah University, Al-Madinah, 41491 Saudi Arabia ,grid.416641.00000 0004 0607 2419Department of Infection Prevention and Control, Prince Mohammad Bin Abdulaziz Hospital, National Guard Health Affairs, Al-Madinah, 41491 Saudi Arabia
| | - Maha H. Aljohani
- Department of infectious diseases, King Fahad Hospital, Madinah, 42351 Saudi Arabia
| | - Sahar Aldossary
- grid.415305.60000 0000 9702 165XPediatric Infectious Diseases, Women and Children’s Health Institute, Johns Hopkins Aramco Healthcare, Dhahran, 31311 Saudi Arabia
| | - Ali A. Rabaan
- grid.415305.60000 0000 9702 165XMolecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, 31311 Saudi Arabia ,grid.411335.10000 0004 1758 7207College of Medicine, Alfaisal University, Riyadh, 11533 Saudi Arabia ,grid.467118.d0000 0004 4660 5283Department of Public Health and Nutrition, The University of Haripur, Haripur, 22610 Pakistan
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13
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Potential Mammalian Vector-Borne Diseases in Live and Wet Markets in Indonesia and Myanmar. MICROBIOLOGY RESEARCH 2023. [DOI: 10.3390/microbiolres14010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Vector-borne diseases spread from wild animals and their associated ectoparasites to humans and domesticated animals. Wildlife markets are recognized as important areas where this transfer can take place. We assessed the potential for spreading vector-borne diseases in two live and wet markets in Myanmar (Mong La, on the Myanmar-China border) and Indonesia (Sukahaji in Bandung on the island of Java) by making an inventory of all live and freshly killed wild mammals for sale. For eight mammal families, we quantified the number of animals on offer, and we used a heatmap cluster analysis to map vector-borne diseases that these families may carry. In Myanmar, we observed large numbers of wild pigs and deer (potentially carrying West Nile and various encephalitis viruses) whereas in Indonesia we observed Old World fruit bats (potentially carrying Chikungunya and encephalitis viruses) and squirrels (potentially carrying West Nile and encephalitis viruses). The trade in Indonesia was dominated by live mammals offered for sale as pets, and only Old World fruit bats and squirrels traded for traditional Asian medicine were killed in the markets. The trade in Myanmar was more geared towards wild meat (e.g., wild pigs, deer, primates) and traditional Asian medicine (squirrels). The combined risks of vector-borne diseases spreading from traded animals to human health highlight the need for an integrated approach protecting public health, economic interests and biodiversity.
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14
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Singh VA, Kumar CS, Khare B, Kuhn RJ, Banerjee M, Tomar S. Surface decorated reporter-tagged chikungunya virus-like particles for clinical diagnostics and identification of virus entry inhibitors. Virology 2023; 578:92-102. [PMID: 36473281 DOI: 10.1016/j.virol.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022]
Abstract
The ever-evolving and versatile VLP technology is becoming an increasingly popular area of science. This study presents surface decorated reporter-tagged VLPs of CHIKV, an enveloped RNA virus of the genus alphavirus and its applications. Western blot, IFA and live-cell imaging confirm the expression of reporter-tagged CHIK-VLPs from transfected HEK293Ts. CryoEM micrographs reveal particle diameter as ∼67nm and 56-70 nm, respectively, for NLuc CHIK-VLPs and mCherry CHIK-VLPs. Our study demonstrates that by exploiting NLuc CHIK-VLPs as a detector probe, robust ratiometric luminescence signal in CHIKV-positive sera compared to healthy controls can be achieved swiftly. Moreover, the potential activity of the Suramin drug as a CHIKV entry inhibitor has been validated through the reporter-tagged CHIK-VLPs. The results reported in this study open new avenues in the eVLPs domain and offer potential for large-scale screening of clinical samples and antiviral agents targeting entry of CHIKV and other alphaviruses.
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Affiliation(s)
- Vedita Anand Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India; Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Chandra Shekhar Kumar
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi, 110016, India
| | - Baldeep Khare
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Richard J Kuhn
- Department of Biological Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Manidipa Banerjee
- Kusuma School of Biological Sciences, Indian Institute of Technology - Delhi, Hauz Khas, New Delhi, 110016, India
| | - Shailly Tomar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247667, Uttarakhand, India.
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15
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Low Transmission of Chikungunya Virus by Aedes aegypti from Vientiane Capital, Lao PDR. Pathogens 2022; 12:pathogens12010031. [PMID: 36678379 PMCID: PMC9860973 DOI: 10.3390/pathogens12010031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/05/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
In 2012−2013, chikungunya virus (CHIKV) was the cause of a major outbreak in the southern part of Lao People’s Democratic Republic (Lao PDR). Since then, only a few imported cases, with isolates belonging to different lineages, were recorded between 2014 and 2020 in Vientiane capital and few autochthonous cases of ECSA-IOL lineage were detected in the south of the country in 2020. The CHIKV epidemiological profile contrasts with the continuous and intensive circulation of dengue virus in the country, especially in Vientiane capital. The study’s aim was to investigate the ability of the local field-derived Aedes aegypti population from Vientiane capital to transmit the Asian and ECSA-IOL lineages of CHIKV. Our results revealed that, for both CHIKV lineages, infection rates were low and dissemination rates were high. The transmission rates and efficiencies evidenced a low vector competence for the CHIKV tested. Although this population of Ae. aegypti showed a relatively modest vector competence for these two CHIKV lineages, several other factors could influence arbovirus emergence such as the longevity and density of female mosquitoes. Due to the active circulation of CHIKV in Southeast Asia, investigations on these factors should be done to prevent the risk of CHIKV emergence and spread in Lao PDR and neighboring countries.
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16
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Rachmat A, Kelly GC, Hontz RD, Supaprom C, Heang V, Hip P, Garcia-Rivera JA, Prom S, Chhea C, Sutherland IW, Corson KS, Letizia AG. Clinical and epidemiologic evaluation of a 2020 chikungunya outbreak in Cambodia. BMC Infect Dis 2022; 22:949. [PMID: 36526991 PMCID: PMC9758031 DOI: 10.1186/s12879-022-07936-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND In 2020, the Kingdom of Cambodia experienced a nationwide outbreak of chikungunya virus (CHIKV). Despite an increase in the frequency of outbreaks and expanding geographic range of CHIKV, diagnostic challenges remain, and limited surveillance data of sufficient granularity are available to characterize epidemiological profiles and disease dynamics of the virus. METHODS An ongoing and long-standing cross-sectional study of acute undifferentiated febrile illness (AUFI) in Cambodia was leveraged to describe the disease epidemiology and characterize the clinical presentation of patients diagnosed with CHIKV during the 2020 outbreak. Participants presenting with AUFI symptoms at ten study locations provided acute and convalescent blood samples and were tested for CHIKV using a reverse transcription-polymerase chain reaction (RT-PCR) and serological diagnostic methods including IgM and IgG. Acute and follow-up clinical data were also collected. RESULTS From 1194 participant blood samples tested, 331 (27.7%) positive CHIKV cases were detected. Most CHIKV positive individuals (280, 84.6%) reported having a fever 3 to 4 days prior to visiting a health facility. Symptoms including chills, joint pain, nausea, vomiting, and lesions were all statistically significant among CHIKV positive participants compared to CHIKV negative AUFI participants. Cough was negatively associated with CHIKV positive participants. Positivity proportions were significantly higher among adults compared to children. No significant difference was found in positivity proportion between rainy and dry seasons during the outbreak. Positive CHIKV cases were detected in all study site provinces, with the highest test positivity proportion recorded in the rural northeast province of Kratie. CONCLUSIONS Surveillance data captured in this study provided a clinical and epidemiological characterization of positive CHIKV patients presenting at selected health facilities in Cambodia in 2020, and highlighted the widespread distribution of the outbreak, impacting both urban and rural locations. Findings also illustrated the importance of utilizing both RT-PCR and serological testing for effective CHIKV surveillance.
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Affiliation(s)
- Agus Rachmat
- AC Investment Co, Contractor for NAMRU-2, Phnom Penh, Cambodia
| | | | | | | | - Vireak Heang
- U.S. Naval Medical Research Unit TWO, Phnom Penh, Cambodia
| | - Phireak Hip
- AC Investment Co, Contractor for NAMRU-2, Phnom Penh, Cambodia
| | | | - Satharath Prom
- Department of Health, Ministry of National Defense, Phnom Penh, Cambodia
| | - Chhorvann Chhea
- grid.436334.5National Institute of Public Health, Ministry of Health, Phnom Penh, Cambodia
| | | | - Karen S. Corson
- U.S. Naval Medical Research Unit TWO, Singapore, Singapore ,U.S. Naval Medical Research Unit TWO, Phnom Penh, Cambodia
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17
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Forni D, Cagliani R, Clerici M, Sironi M. Disease-causing human viruses: novelty and legacy. Trends Microbiol 2022; 30:1232-1242. [PMID: 35902319 DOI: 10.1016/j.tim.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 01/13/2023]
Abstract
About 270 viruses are known to infect humans. Some of these viruses have been known for centuries, whereas others have recently emerged. During their evolutionary history, humans have moved out of Africa to populate the world. In historical times, human migrations resulted in the displacement of large numbers of people. All these events determined the movement and dispersal of human-infecting viruses. Technological advances have resulted in the characterization of the genetic variability of human viruses, both in extant and in archaeological samples. Field studies investigated the diversity of viruses hosted by other animals. In turn, these advances provided insight into the evolutionary history of human viruses back in time and defined the key events through which they originated and spread.
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Affiliation(s)
- Diego Forni
- Scientific Institute IRCCS E. MEDEA, Bioinformatics, Bosisio Parini, Italy
| | - Rachele Cagliani
- Scientific Institute IRCCS E. MEDEA, Bioinformatics, Bosisio Parini, Italy
| | - Mario Clerici
- Department of Physiopathology and Transplantation, University of Milan, Milan, Italy; Don C. Gnocchi Foundation ONLUS, IRCCS, Milan, Italy
| | - Manuela Sironi
- Scientific Institute IRCCS E. MEDEA, Bioinformatics, Bosisio Parini, Italy.
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18
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Saretzki CEB, Dobler G, Iro E, May Y, Tou D, Lockington E, Ala M, Heussen N, Phiri BSJ, Küpper T. Chikungunya virus (CHIKV) seroprevalence in the South Pacific populations of the Cook Islands and Vanuatu with associated environmental and social factors. PLoS Negl Trop Dis 2022; 16:e0010626. [PMID: 36441828 PMCID: PMC9731434 DOI: 10.1371/journal.pntd.0010626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 12/08/2022] [Accepted: 11/14/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Arthropod-borne diseases pose a significant and increasing risk to global health. Given its rapid dissemination, causing large-scale outbreaks with severe human infections and economic loss, the Chikungunya virus (CHIKV) is one of the most important arboviruses worldwide. Despite its significance, the real global impact of CHIKV remains underestimated as outbreak data are often incomplete and based solely on syndromic surveillance. During 2011-2016, the South Pacific Region was severely affected by several CHIKV-epidemics, yet the area is still underrepresented in arboviral research. METHODS 465 outpatient serum samples collected between 08/2016 and 04/2017 on three islands of the island states Vanuatu (Espiritu Santo) and the Cook Islands (Rarotonga, Aitutaki) were tested for anti-CHIKV specific antibodies using Enzyme-linked immunosorbent Assays. RESULTS A total of 30% (Cook Islands) and 8% (Vanuatu) of specimens were found positive for anti-CHIKV specific antibodies with major variations in national and intranational immunity levels. Seroprevalence throughout all age groups was relatively constant. Four potential outbreak-protective factors were identified by comparing the different study settings: presence of Ae. albopictus (in absence of ECSA E1-A226V-mutation CHIKV), as well as low levels of human population densities, residents' travel activity and tourism. CONCLUSION This is the first seroprevalence study focussing on an arboviral disease in the Cook Islands and Vanuatu. It highlights the impact of the 2014/2015 CHIKV epidemic on the Cook Islands population and shows that a notable part of the Vanuatu test population was exposed to CHIKV although no outbreaks were reported. Our findings supplement the knowledge concerning CHIKV epidemics in the South Pacific Region and contribute to a better understanding of virus dissemination, including outbreak modifying factors. This study may support preventive and rapid response measures in affected areas, travel-related risk assessment and infection identification in returning travellers. TRIAL REGISTRATION ClinicalTrials.gov Aachen: 051/16_09/05/2016 Cook Islands Ref.: #16-16 Vanuatu Ref.: MOH/DG 10/1/1-GKT/lr.
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Affiliation(s)
- Charlotte E. B. Saretzki
- Institute for Occupational, Social and Environmental Medicine, RWTH Aachen Technical University, Aachen/ Germany
- * E-mail:
| | | | - Elisabeth Iro
- Cook Islands Ministry of Health, Rarotonga/ Cook Islands
| | - Yin May
- Cook Islands Ministry of Health, Rarotonga Hospital, Rarotonga/ Cook Islands
| | - Douglas Tou
- Cook Islands Ministry of Health, Rarotonga Laboratory, Rarotonga/ Cook Islands
| | - Eteta Lockington
- Cook Islands Ministry of Health, Aitutaki Laboratory, Aitutaki/ Cook Islands
| | - Michael Ala
- Northern Provincial Hospital Laboratory, Espiritu Santo/ Vanuatu
| | - Nicole Heussen
- Department of Medical Statistics, RWTH Aachen Technical University, Aachen/ Germany
- Center of Biostatistics and Epidemiology, Medical School, Sigmund Freud University, Vienna/ Austria
| | - Bruno S. J. Phiri
- Central Veterinary Research Institute (CVRI), Ministry of Fisheries and Livestock, Lusaka/ Zambia
| | - Thomas Küpper
- Institute for Occupational, Social and Environmental Medicine, RWTH Aachen Technical University, Aachen/ Germany
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19
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Updating the Insecticide Resistance Status of Aedes aegypti and Aedes albopictus in Asia: A Systematic Review and Meta-Analysis. Trop Med Infect Dis 2022; 7:tropicalmed7100306. [PMID: 36288047 PMCID: PMC9607256 DOI: 10.3390/tropicalmed7100306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/21/2022] [Accepted: 10/13/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Aedes aegypti and Aedes albopictus are two important vectors of several important arboviruses, including the dengue, chikungunya, and Zika viruses. Insecticide application is an important approach to reduce vector abundance during Aedes spp.-borne outbreaks in the absence of effective vaccines and treatments. However, insecticide overuse can result in the development of resistance, and careful monitoring of resistance markers is required. Methods: This meta-analysis and systematic review explored the spatial and temporal patterns of insecticide resistance in Asia from 2000 to 2021. PubMed, Scopus, EbscoHost, and Embase were used to enhance the search capability. The random-effects model was applied for the 94 studies that met our inclusion criteria for qualitative synthesis and meta-analysis. Results: Four major insecticides were studied (malathion, dichlorodiphenyltrichloroethane, permethrin, and deltamethrin). Dichlorodiphenyltrichloroethane resistance rates were high in both Ae. aegypti and Ae. albopictus (68% and 64%, respectively). Conversely, malathion resistance was less prevalent in Ae. aegypti (3%), and deltamethrin resistance was less common in Ae. albopictus (2%). Ae. aegypti displayed consistently high resistance rates (35%) throughout the study period, whereas the rate of insecticide resistance in Ae. albopictus increased from 5% to 12%. The rates of the major kdr mutations F1534C, V1016G, and S989P were 29%, 26%, and 22%, respectively. Conclusions: Insecticide resistance in both Ae. aegypti and Ae. albopictus is widespread in Asia, although the rates vary by country. Continuous monitoring of the resistance markers and modification of the control strategies will be important for preventing unexpected outbreaks. This systematic review and meta-analysis provided up-to-date information on insecticide resistance in dengue-endemic countries in Asia.
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Dobbs JE, Tritsch SR, Encinales L, Cadena A, Suchowiecki K, Simon G, Mores C, Insignares S, Orozco VPV, Ospino M, Echavez LA, Gomez CAH, Crespo YG, Amdur R, Jimenez ADC, Hernandez CAP, Zapata JCM, Hernandez AS, Silvera PB, Rosales W, Mendoza E, Osorio-Llanes E, Castellar J, Jimenez D, Cooper DM, Firestein GS, Martins K, Chang AY. Regulatory T-cells and GARP expression are decreased in exercise-associated chikungunya viral arthritis flares. Front Immunol 2022; 13:1007106. [PMID: 36275717 PMCID: PMC9585177 DOI: 10.3389/fimmu.2022.1007106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Objective Chikungunya virus (CHIKV) causes persistent arthritis, and our prior study showed that approximately one third of CHIKV arthritis patients had exacerbated arthritis associated with exercise. The underlying mechanism of exercise-associated chikungunya arthritis flare (EACAF) is unknown, and this analysis aimed to examine the regulatory T-cell immune response related to CHIKV arthritis flares. Methods In our study, 124 Colombian patients with a history of CHIKV infection four years prior were enrolled and 113 cases with serologically confirmed CHIKV IgG were used in this analysis. Patient information was gathered via questionnaires, and blood samples were taken to identify total live peripheral blood mononuclear cells, CD4+ cells, T regulatory cells, and their immune markers. We compared outcomes in CHIKV patients with (n = 38) vs. without (n = 75) EACAF using t-tests to assess means and the Fisher’s exact test, chi-squared to evaluate categorical variables, and Kruskal-Wallis tests in the setting of skewed distributions (SAS 9.3). Results 33.6% of CHIKV cases reported worsening arthritis with exercise. EACAF patients reported higher global assessments of arthritis disease ranging from 0-100 (71.2 ± 19.7 vs. 59.9 ± 28.0, p=0.03). EACAF patients had lower ratios of T regulatory (Treg)/CD4+ T-cells (1.95 ± 0.73 vs. 2.4 ± 1.29, p = 0.04) and lower percentage of GARP (glycoprotein-A repetitions predominant) expression per Treg (0.13 ± 0.0.33 vs. 0.16 ± 0.24 p= 0.020). Conclusion These findings suggest relative decreases in GARP expression may indicate a decreased level of immune suppression. Treg populations in patients with CHIKV arthritis may contribute to arthritis flares during exercise, though current research is conflicting.
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Affiliation(s)
- John E. Dobbs
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
- *Correspondence: John E. Dobbs,
| | - Sarah R. Tritsch
- Milken Institute School of Public Health, The George Washington University, Washington, DC, United States
| | | | | | - Karol Suchowiecki
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
| | - Gary Simon
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
| | - Christopher Mores
- Milken Institute School of Public Health, The George Washington University, Washington, DC, United States
| | | | | | | | | | | | | | - Richard Amdur
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
| | | | | | | | | | | | | | - Evelyn Mendoza
- Allied Research Society, Barranquilla, Colombia
- Universidad Libre, Barranquilla, Colombia
| | | | | | - Dennys Jimenez
- University of Texas Health Science Center San Antonio, TX, United States
| | - Dan M. Cooper
- University of California Irvine, Irvine, CA, United States
| | | | - Karen Martins
- Biomedical Advanced Research and Development Authority, Bethesda, MD, United States
| | - Aileen Y. Chang
- School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
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Calvez E, Bounmany P, Somlor S, Xaybounsou T, Viengphouthong S, Keosenhom S, Brey PT, Lacoste V, Grandadam M. Multiple chikungunya virus introductions in Lao PDR from 2014 to 2020. PLoS One 2022; 17:e0271439. [PMID: 35839218 PMCID: PMC9286254 DOI: 10.1371/journal.pone.0271439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 06/30/2022] [Indexed: 12/04/2022] Open
Abstract
The first documented chikungunya virus (CHIKV) outbreak in Lao People’s Democratic Republic (Lao PDR) occurred in 2012–2013. Since then, several imported and a few autochthonous cases were identified by the national arbovirus surveillance network. The present study aimed to summarize the main genetic features of the CHIKV strains detected in Lao PDR between 2014 and 2020. Samples from Lao patients presenting symptoms compatible with a CHIKV infection were centralized in Vientiane Capital city for real-time RT-PCR screening. Molecular epidemiology was performed by sequencing the E2-6K-E1 region. From 2014 to 2020, two Asian lineage isolates (e.g. French Polynesia; Indonesia), one ECSA-IOL lineage isolate (e.g. Thailand) and one unclassified (e.g. Myanmar) were imported in Vientiane Capital city. Sequences from the autochthonous cases recorded in the Central and Southern parts of the country between July and September 2020 belonged to the ECSA-IOL lineage and clustered with CHIKV strains recently detected in neighboring countries. These results demonstrate the multiple CHIKV introductions in Lao PDR since 2014 and provide evidence for sporadic and time-limited circulation of CHIKV in the country. Even if the circulation of CHIKV seems to be geographically and temporally limited in Lao PDR, the development of international tourism and trade may cause future outbreaks of CHIKV in the country and at the regional level.
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Affiliation(s)
- Elodie Calvez
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
- * E-mail:
| | - Phaithong Bounmany
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Somphavanh Somlor
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Thonglakhone Xaybounsou
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Souksakhone Viengphouthong
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Sitsana Keosenhom
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Paul T. Brey
- Medical Entomology and Vector-Borne Disease Unit, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Vincent Lacoste
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
| | - Marc Grandadam
- Arbovirus and Emerging Viral Diseases Laboratory, Institut Pasteur du Laos, Vientiane, Lao People’s Democratic Republic
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Restrepo BN, Marín K, Romero P, Arboleda M, Muñoz AL, Bosch I, Vásquez-Serna H, Torres OA. Role of cytokines, chemokines, C3a, and mannose-binding lectin in the evolution of the chikungunya infection. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL IMMUNOLOGY 2022; 11:51-63. [PMID: 35874468 PMCID: PMC9301056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED The pathogenesis of the severity of chikungunya infection is not yet fully understood. OBJECTIVE To assess the role of the cytokines/chemokines and system of complement in the evolution of chikungunya infection. METHODS In both acute and chronic phases, we measured the serum levels of 12 cytokines/chemokines and two complement mediators: mannose-binding lectin (MBL) and C3a, in 83 patients with chikungunya infection and ten healthy controls. RESULTS During the acute phase, 75.9% of the patients developed musculoskeletal disorders, and in 37.7% of them, these disorders persisted until the chronic phase. In general, patients had higher levels of cytokines than healthy controls, with significant differences for IFN-γ, IL-6, IL-8, IL-10, and MIP-1. Most cytokines exhibited a downward trend during the chronic phase. However, only IL-10, and MIP-1 levels were significantly lower in the chronic phase. Additionally, these levels never decreased to concentrations found in healthy controls. Moreover, MBL levels were significantly higher in the acute phase compared with the chronic phase. C3a levels were significantly higher in patients with musculoskeletal disorder compared with patients without it, in both acute-phase 118.2 (66.5-252.9), and chronic phase 68.5 (64.4-71.3), P < 0.001. Interestingly, C3a levels were significantly higher when patients had a severe disease version. Besides, in the acute phase, C3a levels were higher in patients that suffer arthritis as opposed to when they suffer arthralgia, 194.3 (69.5-282.2), and 70.9 (62.4-198.8), P = 0.013, respectively. CONCLUSIONS Our results showed an immunological response that persisted until the chronic phase and the role of the complement system in the severity of the disease.
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Affiliation(s)
- Berta N Restrepo
- Instituto Colombiano de Medicina Tropical, Universidad CESSabaneta, Antioquía, Colombia
| | - Katerine Marín
- Instituto Colombiano de Medicina Tropical, Universidad CESSabaneta, Antioquía, Colombia
| | - Paola Romero
- Instituto Colombiano de Medicina Tropical, Universidad CESSabaneta, Antioquía, Colombia
| | - Margarita Arboleda
- Instituto Colombiano de Medicina Tropical, Universidad CESSabaneta, Antioquía, Colombia
| | - Ana L Muñoz
- Science Faculty, Universidad Antonio NariñoBogotá, Cundinamarca, Colombia
| | - Irene Bosch
- Institute for Medical Engineering & Science, Massachusetts Institute of TechnologyCambridge, United States
| | | | - Orlando A Torres
- Faculty of Veterinary Medicine, Universidad Antonio NariñoBogotá, Cundinamarca, Colombia
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Hopkins HK, Traverse EM, Barr KL. Chikungunya Encephalitis: an Inconsistently Reported Headache and Cause of Death in Patients with Pre-Existing Conditions. CURRENT TROPICAL MEDICINE REPORTS 2022. [DOI: 10.1007/s40475-022-00258-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractChikungunya virus (CHIKV) is an alphavirus of the family Togaviridae with outbreaks occurring across Africa, Asia, parts of Europe, and South and Central America. There are three main lineages of CHIKV, including the West African lineage, the East Central South African (ECSA) lineage, and the Asian lineage. While CHIKV infection usually results in a self-limited febrile illness, there have been reports of concerning neurological manifestations, including encephalitis. Herein we discuss findings of over 700 cases of CHIKV encephalitis and risk factors for death. Additionally, we examined the genotypes of CHIKV associated with encephalitis and found that both the Asian and ECSA lineages were responsible for encephalitis but not the West African lineage. Protein analysis of consensus sequences of CHIKV strains associated with encephalitis identified mutations in the nsP1, nsP2, and nsP3 proteins. Reports and manuscripts of CHIKV encephalitis were inconsistent in reporting viral, demographic, and clinical features which complicated the delineation of risk factors associated with the disease and viral evolution. As climate change contributes to the range expansion of natural vectors, it is important for researchers and clinicians to consistently report patient and viral data to facilitate research and countermeasures for the ecology and epidemiology of CHIKV due to the lack of a targeted treatment or vaccine.
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Alam I, Batool K, Idris AL, Tan W, Guan X, Zhang L. Role of Lectin in the Response of Aedes aegypti Against Bt Toxin. Front Immunol 2022; 13:898198. [PMID: 35634312 PMCID: PMC9136036 DOI: 10.3389/fimmu.2022.898198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/19/2022] [Indexed: 12/05/2022] Open
Abstract
Aedes aegypti is one of the world’s most dangerous mosquitoes, and a vector of diseases such as dengue fever, chikungunya virus, yellow fever, and Zika virus disease. Currently, a major global challenge is the scarcity of antiviral medicine and vaccine for arboviruses. Bacillus thuringiensis var israelensis (Bti) toxins are used as biological mosquito control agents. Endotoxins, including Cry4Aa, Cry4Ba, Cry10Aa, Cry11Aa, and Cyt1Aa, are toxic to mosquitoes. Insect eradication by Cry toxin relies primarily on the interaction of cry toxins with key toxin receptors, such as aminopeptidase (APN), alkaline phosphatase (ALP), cadherin (CAD), and ATP-binding cassette transporters. The carbohydrate recognition domains (CRDs) of lectins and domains II and III of Cry toxins share similar structural folds, suggesting that midgut proteins, such as C-type lectins (CTLs), may interfere with interactions among Cry toxins and receptors by binding to both and alter Cry toxicity. In the present review, we summarize the functional role of C-type lectins in Ae. aegypti mosquitoes and the mechanism underlying the alteration of Cry toxin activity by CTLs. Furthermore, we outline future research directions on elucidating the Bti resistance mechanism. This study provides a basis for understanding Bti resistance, which can be used to develop novel insecticides.
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Affiliation(s)
- Intikhab Alam
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Lab of Biopesticides and Chemical Biology, MOE, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Life Sciences, South China Agricultural University, Guangzhou, China
| | - Khadija Batool
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Lab of Biopesticides and Chemical Biology, MOE, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Aisha Lawan Idris
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Lab of Biopesticides and Chemical Biology, MOE, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Weilong Tan
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing, China
| | - Xiong Guan
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Lab of Biopesticides and Chemical Biology, MOE, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Lingling Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Lab of Biopesticides and Chemical Biology, MOE, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Lingling Zhang,
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Nervous System Manifestations of Arboviral Infections. CURRENT TROPICAL MEDICINE REPORTS 2022; 9:107-118. [PMID: 36124288 PMCID: PMC9476420 DOI: 10.1007/s40475-022-00262-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2022] [Indexed: 01/11/2023]
Abstract
Purpose of Review Complex environmental factors and human intervention influence the spread of arthropod vectors and the cycle of transmission of arboviruses. The spectrum of clinical manifestations is diverse, ranging from serious presentations like viral hemorrhagic fever (e.g., dengue, yellow fever, rift valley fever) or shock syndromes (e.g., dengue virus) to organ-specific illness like meningoencephalitis. Recent Findings A spectrum of clinical neurologic syndromes with potential acute devastating consequences or long-term sequelae may result from some arboviral infections. Summary In this review, we describe some of the most frequent and emerging neuro-invasive arboviral infections, spectrum of neurologic disorders including encephalitis, meningitis, myelitis or poliomyelitis, acute demyelinating encephalomyelitis, Guillain-Barré syndrome, and ocular syndromes.
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Khongwichit S, Chansaenroj J, Chirathaworn C, Poovorawan Y. Chikungunya virus infection: molecular biology, clinical characteristics, and epidemiology in Asian countries. J Biomed Sci 2021; 28:84. [PMID: 34857000 PMCID: PMC8638460 DOI: 10.1186/s12929-021-00778-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 11/21/2021] [Indexed: 02/03/2023] Open
Abstract
Chikungunya virus (CHIKV) is a re-emerging mosquito-borne human pathogen that causes chikungunya fever, which is typically accompanied by severe joint pain. In Asia, serological evidence indicated that CHIKV first emerged in 1954. From the 1950’s to 2005, sporadic CHIKV infections were attributed to the Asian genotype. However, the massive outbreak of CHIKV in India and the Southwest Indian Ocean Islands in 2005 has since raised chikungunya as a worldwide public health concern. The virus is spreading globally, but mostly in tropical and subtropical regions, particularly in South and Southeast Asia. The emergence of the CHIKV East/Central/South African genotype-Indian Ocean lineage (ECSA-IOL) has caused large outbreaks in South and Southeast Asia affected more than a million people over a decade. Notably, the massive CHIKV outbreaks before 2016 and the more recent outbreak in Asia were driven by distinct ECSA lineages. The first significant CHIKV ECSA strains harbored the Aedes albopictus-adaptive mutation E1: A226V. More recently, another mass CHIKV ECSA outbreak in Asia started in India and spread beyond South and Southeast Asia to Kenya and Italy. This virus lacked the E1: A226V mutation but instead harbored two novel mutations (E1: K211E and E2: V264A) in an E1: 226A background, which enhanced its fitness in Aedes aegypti. The emergence of a novel ECSA strain may lead to a more widespread geographical distribution of CHIKV in the future. This review summarizes the current CHIKV situation in Asian countries and provides a general overview of the molecular virology, disease manifestation, diagnosis, prevalence, genotype distribution, evolutionary relationships, and epidemiology of CHIKV infection in Asian countries over the past 65 years. This knowledge is essential in guiding the epidemiological study, control, prevention of future CHIKV outbreaks, and the development of new vaccines and antivirals targeting CHIKV.
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Affiliation(s)
- Sarawut Khongwichit
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jira Chansaenroj
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chintana Chirathaworn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.,Tropical Medicine Cluster, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand.
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Luvai EAC, Kyaw AK, Sabin NS, Yu F, Hmone SW, Thant KZ, Inoue S, Morita K, Ngwe Tun MM. Evidence of Chikungunya virus seroprevalence in Myanmar among dengue-suspected patients and healthy volunteers in 2013, 2015, and 2018. PLoS Negl Trop Dis 2021; 15:e0009961. [PMID: 34851949 PMCID: PMC8635363 DOI: 10.1371/journal.pntd.0009961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 11/01/2021] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION Chikungunya virus (CHIKV) is a mosquito-borne virus known to cause acute febrile illness associated with debilitating polyarthritis. In 2019, several institutions in Myanmar reported a CHIKV outbreak. There are no official reports of CHIKV cases between 2011 and 2018. Therefore, this study sought to determine the seroprevalence of CHIKV infection before the 2019 outbreak. METHODS A total of 1,544 serum samples were collected from healthy volunteers and patients with febrile illnesses in Yangon, Mandalay, and the Myeik district in 2013, 2015, and 2018. Participants ranged from one month to 65 years of age. Antibody screening was performed with in-house anti-CHIKV IgG and IgM ELISA. A neutralization assay was used as a confirmatory test. RESULTS The seroprevalence of anti-CHIKV IgM and anti-CHIKV IgG was 8.9% and 28.6%, respectively, with an overall seropositivity rate of 34.5%. A focus reduction neutralization assay confirmed 32.5% seroprevalence of CHIKV in the study population. Age, health status, and region were significantly associated with neutralizing antibodies (NAbs) and CHIKV seropositivity (p < 0.05), while gender was not (p = 0.9). Seroprevalence in 2013, 2015, and 2018 was 32.1%, 28.8%, and 37.3%, respectively. Of the clinical symptoms observed in participants with fevers, arthralgia was mainly noted in CHIKV-seropositive patients. CONCLUSION The findings in this study reveal the circulation of CHIKV in Myanmar's Mandalay, Yangon, and Myeik regions before the 2019 CHIKV outbreak. As no treatment or vaccine for CHIKV exists, the virus must be monitored through systematic surveillance in Myanmar.
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Affiliation(s)
- Elizabeth Ajema Chebichi Luvai
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
- Department of Biomedical Sciences and Technology, School of Health and Biomedical Sciences, The Technical University of Kenya, Nairobi, Kenya
| | - Aung Kyaw Kyaw
- Department of Medical Research, Ministry of Health and Sports, Yangon, Myanmar
| | - Nundu Sabiti Sabin
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Fuxun Yu
- Guizhou Provincial People’s Hospital, Guiyang City, Guizhou Province, China
| | - Saw Wut Hmone
- Department of Pathology, University of Medicine-1, Lanmadaw township, Yangon, Myanmar
| | - Kyaw Zin Thant
- Department of Medical Research, Ministry of Health and Sports, Yangon, Myanmar
| | - Shingo Inoue
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
| | - Kouichi Morita
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
- Program for Nurturing Global Leaders in Tropical and Emerging Communicable Diseases, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Mya Myat Ngwe Tun
- Department of Virology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki, Japan
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White T, Mincham G, Montgomery BL, Jansen CC, Huang X, Williams CR, Flower RLP, Faddy HM, Frentiu FD, Viennet E. Past and future epidemic potential of chikungunya virus in Australia. PLoS Negl Trop Dis 2021; 15:e0009963. [PMID: 34784371 PMCID: PMC8631637 DOI: 10.1371/journal.pntd.0009963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/30/2021] [Accepted: 11/02/2021] [Indexed: 11/18/2022] Open
Abstract
Background Australia is theoretically at risk of epidemic chikungunya virus (CHIKV) activity as the principal vectors are present on the mainland Aedes aegypti) and some islands of the Torres Strait (Ae. aegypti and Ae. albopictus). Both vectors are highly invasive and adapted to urban environments with a capacity to expand their distributions into south-east Queensland and other states in Australia. We sought to estimate the epidemic potential of CHIKV, which is not currently endemic in Australia, by considering exclusively transmission by the established vector in Australia, Ae. aegypti, due to the historical relevance and anthropophilic nature of the vector. Methodology/Principal findings We estimated the historical (1995–2019) epidemic potential of CHIKV in eleven Australian locations, including the Torres Strait, using a basic reproduction number equation. We found that the main urban centres of Northern Australia could sustain an epidemic of CHIKV. We then estimated future trends in epidemic potential for the main centres for the years 2020 to 2029. We also conducted uncertainty and sensitivity analyses on the variables comprising the basic reproduction number and found high sensitivity to mosquito population size, human population size, impact of vector control and human infectious period. Conclusions/Significance By estimating the epidemic potential for CHIKV transmission on mainland Australia and the Torres Strait, we identified key areas of focus for controlling vector populations and reducing human exposure. As the epidemic potential of the virus is estimated to rise towards 2029, a greater focus on control and prevention measures should be implemented in at-risk locations. Chikungunya virus (CHIKV) is transmitted primarily by Aedes aegypti and Aedes albopictus mosquitoes and causes a potentially debilitating febrile and arthralgic disease. The virus is a threat to public health in regions where the primary vectors are established, as evidenced by past epidemics in the Indian Ocean Islands, South America and the Caribbean. In Australia, there are established populations of Ae. aegypti both on the mainland and in the Torres Strait, and of Ae. albopictus in the Torres Strait. This provides a theoretical potential for CHIKV transmission, as seen historically with dengue virus (DENV). It is therefore important to understand the epidemic potential of CHIKV in Australia. We estimated the basic reproduction number (R0) of CHIKV during the years 1995–2019 for 11 Urban Centres and Localities (UCLs) in Australia, and found that Brisbane, Cairns, Darwin, Rockhampton, Thursday Island, and Townsville were all susceptible to CHIKV epidemics. We then forecasted epidemic potential from 2020–2029 and found an increase in R0 across the six main UCLs. By highlighting factors that significantly influence the epidemic potential of CHIKV in Australia, our study supports evidence-based decision making for vector control and public health programs.
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Affiliation(s)
- Timothy White
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Research and Development, Australian Red Cross Lifeblood, Kelvin Grove, Queensland, Australia
| | - Gina Mincham
- Research and Innovation Services, University of South Australia, Adelaide, South Australia, Australia
| | - Brian L. Montgomery
- Metro South Public Health Unit, Metro South Hospital and Health Service, Brisbane, Queensland, Australia
| | - Cassie C. Jansen
- Communicable Diseases Branch, Queensland Department of Health, Herston, Queensland, Australia
| | - Xiaodong Huang
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Craig R. Williams
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Robert L. P. Flower
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Research and Development, Australian Red Cross Lifeblood, Kelvin Grove, Queensland, Australia
| | - Helen M. Faddy
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Research and Development, Australian Red Cross Lifeblood, Kelvin Grove, Queensland, Australia
- School of Health and Behavioural Sciences, University of the Sunshine Coast, Petrie, Queensland, Australia
| | - Francesca D. Frentiu
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Elvina Viennet
- Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Research and Development, Australian Red Cross Lifeblood, Kelvin Grove, Queensland, Australia
- * E-mail:
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Chaudhary S, Jain J, Kumar R, Shrinet J, Weaver SC, Auguste AJ, Sunil S. Chikungunya virus molecular evolution in India since its re-emergence in 2005. Virus Evol 2021; 7:veab074. [PMID: 34754512 PMCID: PMC8570154 DOI: 10.1093/ve/veab074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 07/20/2021] [Accepted: 08/25/2021] [Indexed: 11/13/2022] Open
Abstract
Chikungunya virus (CHIKV), an alphavirus of the Togaviridae family, is among the most medically significant mosquito-borne viruses, capable of causing major epidemics of febrile disease and severe, chronic arthritis. Identifying viral mutations is crucial for understanding virus evolution and evaluating those genetic determinants that directly impact pathogenesis and transmissibility. The present study was undertaken to expand on past CHIKV evolutionary studies through robust genome-scale phylogenetic analysis to better understand CHIKV genetic diversity and evolutionary dynamics since its reintroduction into India in 2005. We sequenced the complete genomes of fifty clinical isolates collected between 2010 and 2016 from two geographic locations, Delhi and Mumbai. We then analysed them along with 753 genomes available on the Virus Pathogen Database and Analysis Resource sampled over fifteen years (2005-20) from a range of locations across the globe and identified novel genetic variants present in samples from this study. Our analyses show evidence of frequent reintroduction of the virus into India and that the most recent CHIKV outbreak shares a common ancestor as recently as 2006.
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Affiliation(s)
| | - Jaspreet Jain
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | | | - Jatin Shrinet
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Scott C Weaver
- World Reference Center for Emerging Viruses and Arboviruses, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Albert J Auguste
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Sujatha Sunil
- Vector Borne Diseases Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi 110067, India
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Traverse EM, Hopkins HK, Vaidhyanathan V, Barr KL. Cardiomyopathy and Death Following Chikungunya Infection: An Increasingly Common Outcome. Trop Med Infect Dis 2021; 6:108. [PMID: 34206332 PMCID: PMC8293388 DOI: 10.3390/tropicalmed6030108] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/14/2021] [Accepted: 06/18/2021] [Indexed: 12/13/2022] Open
Abstract
Chikungunya virus (CHIKV) is vectored by Aedes aegypti and Aedes albopictus mosquitoes and is found throughout tropical and sub-tropical regions. While most infections cause mild symptoms such as fever and arthralgia, there have been cases in which cardiac involvement has been reported. In adults, case reports include symptoms ranging from tachycardia and arrythmia, to myocarditis and cardiac arrest. In children, case reports describe symptoms such as arrythmia, myocarditis, and heart failure. Case reports of perinatal and neonatal CHIKV infections have also described cardiovascular compromise, including myocardial hypertrophy, ventricular dysfunction, myocarditis, and death. Myocarditis refers to inflammation of the heart tissue, which can be caused by viral infection, thus becoming viral myocarditis. Since viral myocarditis is linked as a causative factor of other cardiomyopathies, including dilated cardiomyopathy, in which the heart muscle weakens and fails to pump blood properly, the connection between CHIKV and the heart is concerning. We searched Pubmed, Embase, LILACS, and Google Scholar to identify case reports of CHIKV infections where cardiac symptoms were reported. We utilized NCBI Virus and NCBI Nucleotide to explore the lineage/evolution of strains associated with these outbreaks. Statistical analysis was performed to identify which clinical features were associated with death. Phylogenetic analysis determined that CHIKV infections with cardiac symptoms are associated with the Asian, the East Central South African, and the Indian Ocean lineages. Of patients admitted to hospital, death rates ranged from 26-48%. Myocarditis, hypertension, pre-existing conditions, and the development of heart failure were significantly correlated with death. As such, clinicians should be aware in their treatment and follow-up of patients.
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Affiliation(s)
- Elizabeth M. Traverse
- Center for Global Health and Infectious Disease Research, University of South Florida, Tampa, FL 33612, USA; (E.M.T.); (H.K.H.)
| | - Hannah K. Hopkins
- Center for Global Health and Infectious Disease Research, University of South Florida, Tampa, FL 33612, USA; (E.M.T.); (H.K.H.)
| | | | - Kelli L. Barr
- Center for Global Health and Infectious Disease Research, University of South Florida, Tampa, FL 33612, USA; (E.M.T.); (H.K.H.)
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Sharif N, Sarkar MK, Ferdous RN, Ahmed SN, Billah MB, Talukder AA, Zhang M, Dey SK. Molecular Epidemiology, Evolution and Reemergence of Chikungunya Virus in South Asia. Front Microbiol 2021; 12:689979. [PMID: 34163459 PMCID: PMC8215147 DOI: 10.3389/fmicb.2021.689979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/10/2021] [Indexed: 11/23/2022] Open
Abstract
Chikungunya virus (CHIKV) is a vector (mosquito)-transmitted alphavirus (family Togaviridae). CHIKV can cause fever and febrile illness associated with severe arthralgia and rash. Genotypic and phylogenetic analysis are important to understand the spread of CHIKV during epidemics and the diversity of circulating strains for the prediction of effective control measures. Molecular epidemiologic analysis of CHIKV is necessary to understand the complex interaction of vectors, hosts and environment that influences the genotypic evolution of epidemic strains. In this study, different works published during 1950s to 2020 concerning CHIKV evolution, epidemiology, vectors, phylogeny, and clinical outcomes were analyzed. Outbreaks of CHIKV have been reported from Bangladesh, Bhutan, India, Pakistan, Sri Lanka, Nepal, and Maldives in South Asia during 2007–2020. Three lineages- Asian, East/Central/South African (ECSA), and Indian Ocean Lineage (IOL) are circulating in South Asia. Lineage, ECSA and IOL became predominant over Asian lineage in South Asian countries during 2011–2020 epidemics. Further, the mutant E1-A226V is circulating in abundance with Aedes albopictus in India, Bangladesh, Nepal, and Bhutan. CHIKV is underestimated as clinical symptoms of CHIKV infection merges with the symptoms of dengue fever in South Asia. Failure to inhibit vector mediated transmission and predict epidemics of CHIKV increase the risk of larger global epidemics in future. To understand geographical spread of CHIKV, most of the studies focused on CHIKV outbreak, biology, pathogenesis, infection, transmission, and treatment. This updated study will reveal the collective epidemiology, evolution and phylogenies of CHIKV, supporting the necessity to investigate the circulating strains and vectors in South Asia.
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Affiliation(s)
- Nadim Sharif
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
| | | | - Rabeya Nahar Ferdous
- Department of Microbiology, Bangladesh University of Health Sciences, Dhaka, Bangladesh
| | | | - Md Baki Billah
- Department of Zoology, Jahangirnagar University, Savar, Bangladesh
| | - Ali Azam Talukder
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
| | - Ming Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, United States
| | - Shuvra Kanti Dey
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
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Anggraeni YM, Garjito TA, Prihatin MT, Handayani SW, Negari KS, Yanti AO, Hidajat MC, Prastowo D, Satoto TBT, Manguin S, Gavotte L, Frutos R. Fast Expansion of the Asian-Pacific Genotype of the Chikungunya Virus in Indonesia. Front Cell Infect Microbiol 2021; 11:631508. [PMID: 33968797 PMCID: PMC8098665 DOI: 10.3389/fcimb.2021.631508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
Chikungunya is repeatedly affecting Indonesia through successive outbreaks. The Asian genotype has been present in Asia since the late 1950s while the ECSA-IOL (East/Central/South Africa - Indian Ocean Lineage) genotype invaded Asia in 2005. In order to determine the extension of the circulation of the chikungunya virus (CHIKV) in Indonesia, mosquitoes were collected in 28 different sites from 12 Indonesian provinces in 2016-2017. The E1 subunit of the CHIKV envelope gene was sequenced while mosquitoes were genotyped using the mitochondrial cox1 (cytochrome C oxidase subunit 1) gene to determine whether a specific population was involved in the vectoring of CHIKV. A total of 37 CHIKV samples were found in 28 Aedes aegypti, 8 Aedes albopictus and 1 Aedes butleri out of 15,362 samples collected and tested. These viruses, like all Indonesian CHIKV since 2000, belonged to a genotype we propose to call the Asian-Pacific genotype. It also comprises the Yap isolates and viruses having emerged in Polynesia, the Caribbean and South America. They differ from the CHIKV of the Asian genotype found earlier in Indonesia indicating a replacement. These results raise the question of the mechanisms behind this fast and massive replacement.
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Affiliation(s)
- Yusnita Mirna Anggraeni
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Triwibowo Ambar Garjito
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
- HSM, University of Montpellier, CNRS, IRD, Montpellier, France
| | - Mega Tyas Prihatin
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Sri Wahyuni Handayani
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Kusumaningtyas Sekar Negari
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Ary Oktsari Yanti
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Muhammad Choirul Hidajat
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Dhian Prastowo
- Institute for Vector and Reservoir Control Research and Development, National Institute of Health Research and Development, the Ministry of Health of Indonesia, Salatiga, Indonesia
| | - Tri Baskoro Tunggul Satoto
- Department of Parasitology, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia
| | - Sylvie Manguin
- HSM, University of Montpellier, CNRS, IRD, Montpellier, France
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Comparative Study of Chikungunya Only and Chikungunya-Scrub Typhus Coinfection in Children: Findings from a Hospital-Based Observational Study from Central Nepal. Int J Pediatr 2021; 2021:6613564. [PMID: 33995532 PMCID: PMC8081591 DOI: 10.1155/2021/6613564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/04/2021] [Accepted: 04/16/2021] [Indexed: 11/24/2022] Open
Abstract
Objectives Chikungunya and scrub typhus infection are important causes of undifferentiated fever in tropical zones. The clinical manifestations in both conditions are nonspecific and often overlap. This study compares the clinical manifestations and the outcome of chikungunya with chikungunya-scrub typhus coinfection in children. Methods A hospital-based observational study was conducted in children below 15 years of age over 16-month duration in 2017-2018. Chikungunya was diagnosed by IgM ELISA. All positive chikungunya cases were subjected to scrub typhus testing, dengue testing, leptospira testing, and malaria testing. Clinical manifestations and outcomes of all patients were recorded. Results Out of the 382 admitted cases with fever, 11% (n = 42) were diagnosed with chikungunya, and the majority (n = 30, 71.4%) were male. Among the 42 chikungunya cases, 17 (40.5%) tested positive for scrub typhus and one positive for falciparum malaria. Out of a total of 42 chikungunya cases, myalgia, nausea/vomiting, headache, abdominal pain, lymphadenopathy, hepatomegaly, splenomegaly, and edema were 81%, 73.8%, 66.7%, 64.3%, 59.5%, 52.4%, 40.5%, and 38.1%, respectively. Besides, altered sensorium (31%), jaundice (26.2%), dry cough (21.4%), shortness of breath (19%), and seizures (16.7%) were other clinical manifestations present in this group of children. Patients with chikungunya-scrub typhus coinfection reported headaches, pain in the abdomen, dry cough, shortness of breath, seizures, and splenomegaly, significantly more (p value < 0.05) compared to those with chikungunya only. Thirteen (31%) children developed shock, five in the chikungunya group and eight in the chikungunya-scrub typhus coinfection group. Six children in the coinfection group received inotrope. Among the chikungunya-only cases, 22 recovered and one died, whereas in the chikungunya-scrub typhus coinfection group, fourteen recovered and three died. Conclusions Both the chikungunya and scrub typhus coinfection groups shared many similar clinical manifestations. In children, coinfection with scrub typhus often leads to modification of the clinical profile, complications, and chikungunya outcome.
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Cracknell Daniels B, Gaythorpe K, Imai N, Dorigatti I. Yellow fever in Asia-a risk analysis. J Travel Med 2021; 28:taab015. [PMID: 33506250 PMCID: PMC8045179 DOI: 10.1093/jtm/taab015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND There is concern about the risk of yellow fever (YF) establishment in Asia, owing to rising numbers of urban outbreaks in endemic countries and globalisation. Following an outbreak in Angola in 2016, YF cases were introduced into China. Prior to this, YF had never been recorded in Asia, despite climatic suitability and the presence of mosquitoes. An outbreak in Asia could result in widespread fatalities and huge economic impact. Therefore, quantifying the potential risk of YF outbreaks in Asia is a public health priority. METHODS Using international flight data and YF incidence estimates from 2016, we quantified the risk of YF introduction via air travel into Asia. In locations with evidence of a competent mosquito population, the potential for autochthonous YF transmission was estimated using a temperature-dependent model of the reproduction number and a branching process model assuming a negative binomial distribution. RESULTS In total, 25 cities across Asia were estimated to be at risk of receiving at least one YF viraemic traveller during 2016. At their average temperatures, we estimated the probability of autochthonous transmission to be <50% in all cities, which was primarily due to the limited number of estimated introductions that year. CONCLUSION Despite the rise in air travel, we found low support for travel patterns between YF endemic countries and Asia resulting in autochthonous transmission during 2016. This supports the historic absence of YF in Asia and suggests it could be due to a limited number of introductions in previous years. Future increases in travel volumes or YF incidence can increase the number of introductions and the risk of autochthonous transmission. Given the high proportion of asymptomatic or mild infections and the challenges of YF surveillance, our model can be used to estimate the introduction and outbreak risk and can provide useful information to surveillance systems.
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Affiliation(s)
- Bethan Cracknell Daniels
- MRC Centre for Global Infectious Disease Analysis; and the Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), School of Public Health, Imperial College London
| | - Katy Gaythorpe
- MRC Centre for Global Infectious Disease Analysis; and the Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), School of Public Health, Imperial College London
| | - Natsuko Imai
- MRC Centre for Global Infectious Disease Analysis; and the Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), School of Public Health, Imperial College London
| | - Ilaria Dorigatti
- MRC Centre for Global Infectious Disease Analysis; and the Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), School of Public Health, Imperial College London
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Craig AT, Kama N, Fafale G, Bugoro H. Citizen science as a tool for arboviral vector surveillance in a resourced-constrained setting: results of a pilot study in Honiara, Solomon Islands, 2019. BMC Public Health 2021; 21:509. [PMID: 33726697 PMCID: PMC7962342 DOI: 10.1186/s12889-021-10493-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 02/24/2021] [Indexed: 12/12/2022] Open
Abstract
Background Recent arboviral disease outbreaks highlight the value a better understanding of the spread of disease-carrying mosquitoes across spatial-temporal scales can provide. Traditional surveillance tools are limited by jurisdictional boundaries, workforce constraints, logistics, and cost; factors that in low- and middle-income countries often conspire to undermine public health protection efforts. To overcome these, we undertake a pilot study designed to explore if citizen science provides a feasible strategy for arboviral vector surveillance in small developing Pacific island contexts. Methods We recruited, trained, and equipped community volunteers to trap and type mosquitos within their household settings, and to report count data to a central authority by short-message-service. Mosquito catches were independently assessed to measure participants’ mosquito identification accuracy. Other data were collected to measure the frequency and stability of reporting, and volunteers’ experiences. Results Participants collected data for 78.3% of the study period, and agreement between the volunteer citizen scientists’ and the reviewing entomologist’s mosquito identification was 94%. Opportunity to contribute to a project of social benefit, the chance to learn new skills, and the frequency of engagement with project staff were prime motivators for participation. Unstable electricity supply (required to run the trap’s fan), insufficient personal finances (to buy electricity and phone credit), and inconvenience were identified as barriers to sustained participation. Conclusions While there are challenges to address, our findings suggest that citizen science offers an opportunity to overcome the human resource constraints that conspire to limit health authorities’ capacity to monitor arboviral vectors across populations. We note that the success of citizen science-based surveillance is dependent on the appropriate selection of equipment and participants, and the quality of engagement and support provided. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-10493-6.
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Affiliation(s)
- Adam T Craig
- University of New South Wales (Sydney), Sydney, New South Wales, Australia
| | - Nathan Kama
- Vector-borne Disease Unit, Solomon Islands Ministry of Health and Medical Services, Honiara, Solomon Islands
| | - George Fafale
- Environmental Health Unit, Honiara City Council, Honiara, Solomon Islands
| | - Hugo Bugoro
- Solomon Islands National University, Honiara, Solomon Islands.
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Wimalasiri-Yapa BMCR, Barrero RA, Stassen L, Hafner LM, McGraw EA, Pyke AT, Jansen CC, Suhrbier A, Yakob L, Hu W, Devine GJ, Frentiu FD. Temperature modulates immune gene expression in mosquitoes during arbovirus infection. Open Biol 2021; 11:200246. [PMID: 33401993 PMCID: PMC7881175 DOI: 10.1098/rsob.200246] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The principal vector of dengue, Zika and chikungunya viruses is the mosquito Aedes aegypti, with its ability to transmit pathogens influenced by ambient temperature. We use chikungunya virus (CHIKV) to understand how the mosquito transcriptome responds to arbovirus infection at different ambient temperatures. We exposed CHIKV-infected mosquitoes to 18, 28 and 32°C, and found that higher temperature correlated with higher virus levels, particularly at 3 days post infection, but lower temperature resulted in reduced virus levels. RNAseq analysis indicated significantly altered gene expression levels in CHIKV infection. The highest number of significantly differentially expressed genes was observed at 28°C, with a more muted effect at the other temperatures. At the higher temperature, the expression of many classical immune genes, including Dicer-2, was not substantially altered in response to CHIKV. The upregulation of Toll, IMD and JAK-STAT pathways was only observed at 28°C. Functional annotations suggested that genes in immune response and metabolic pathways related to energy supply and DNA replication were involved in temperature-dependent changes. Time post infection also led to substantially different gene expression profiles, and this varied with temperature. In conclusion, temperature significantly modulates mosquito gene expression in response to infection, potentially leading to impairment of immune defences at higher temperatures.
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Affiliation(s)
- B M C Randika Wimalasiri-Yapa
- Institute of Health and Biomedical Innovation, and School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia.,Department of Medical Laboratory Sciences, Faculty of Health Science, Open University of Sri Lanka, Nugegoda, Colombo, Sri Lanka
| | - Roberto A Barrero
- eResearch Office, Division of Research and Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Liesel Stassen
- Institute of Health and Biomedical Innovation, and School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Louise M Hafner
- Institute of Health and Biomedical Innovation, and School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Elizabeth A McGraw
- Center for Infectious Disease Dynamics, Department of Entomology, The Pennsylvania State University, University Park, PA 16801, USA
| | - Alyssa T Pyke
- Public Health Virology Laboratory, Forensic and Scientific Services, Coopers Plains, Queensland, Australia
| | - Cassie C Jansen
- Communicable Diseases Branch, Department of Health, Queensland Government, Herston, Queensland, Australia
| | - Andreas Suhrbier
- Inflammation Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia
| | - Laith Yakob
- London School of Hygiene and Tropical Medicine, London, UK
| | - Wenbiao Hu
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Gregor J Devine
- Mosquito Control Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Francesca D Frentiu
- Institute of Health and Biomedical Innovation, and School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
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Stubbs SCB, Johar E, Yudhaputri FA, Yohan B, Santoso MS, Hayati RF, Denis D, Blacklaws BA, Powers AM, Sasmono RT, Myint KSA, Frost SDW. An investig-ation into the epidemiology of chikungunya virus across neglected regions of Indonesia. PLoS Negl Trop Dis 2020; 14:e0008934. [PMID: 33347450 PMCID: PMC7785224 DOI: 10.1371/journal.pntd.0008934] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 01/05/2021] [Accepted: 10/30/2020] [Indexed: 12/17/2022] Open
Abstract
Background Chikungunya virus (CHIKV) is an important emerging and re-emerging public health problem worldwide. In Indonesia, where the virus is endemic, epidemiological information from outside of the main islands of Java and Bali is limited. Methodology/Principal Findings Four hundred and seventy nine acutely febrile patients presenting between September 2017–2019 were recruited from three city hospitals situated in Ambon, Maluku; Banjarmasin, Kalimantan; and Batam, Batam Island as part of a multi-site observational study. CHIKV RNA was detected in a single serum sample while a separate sample was IgM positive. IgG seroprevalence was also low across all three sites, ranging from 1.4–3.2%. The single RT-PCR positive sample from this study and 24 archived samples collected during other recent outbreaks throughout Indonesia were subjected to complete coding region sequencing to assess the genetic diversity of Indonesian strains. Phylogenetic analysis revealed all to be of a single clade, which was distinct from CHIKV strains recently reported from neighbouring regions including the Philippines and the Pacific Islands. Conclusions/Significance Chikungunya virus strains from recent outbreaks across Indonesia all belong to a single clade. However, low-level seroprevalence and molecular detection of CHIKV across the three study sites appears to contrast with the generally high seroprevalences that have been reported for non-outbreak settings in Java and Bali, and may account for the relative lack of CHIKV epidemiological data from other regions of Indonesia. Outbreaks of chikungunya virus (CHIKV) are a common occurrence in Indonesia. However, limited data is available on CHIKV from regions outside of the main, central islands of Java and Bali. We recruited hospital patients from three cities located in the east (Ambon), west (Batam) and north (Banjarmasin) of the country, and screened their blood for evidence of CHIKV infection. Our results showed that CHIKV infections were relatively uncommon across patients from all three sites, suggesting that CHIKV transmission is currently relatively rare in these regions. Additional analysis of 25 recent Indonesian CHIKV genome sequences revealed that a new lineage of CHIKV has recently emerged in Indonesia. Several reports have highlighted Indonesia as a major source of imported CHIKV cases, suggesting that this new lineage has the potential to be introduced into neighbouring countries in the near future, with unknown consequences. Overall, our results indicate that additional CHIKV surveillance studies in Indonesia and Southeast Asia are needed in order to gain a clearer understanding of transmission routes and hot spots throughout the region.
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Affiliation(s)
- Samuel C. B. Stubbs
- University of Cambridge, Department of Veterinary Medicine, Cambridge, United Kingdom
- * E-mail: (SCBS); (KSAM)
| | - Edison Johar
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
| | | | | | | | | | | | - Barbara A. Blacklaws
- University of Cambridge, Department of Veterinary Medicine, Cambridge, United Kingdom
| | - Ann M. Powers
- Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado, United States of America
| | | | - Khin Saw Aye Myint
- Eijkman Institute for Molecular Biology, Jakarta, Indonesia
- * E-mail: (SCBS); (KSAM)
| | - Simon D. W. Frost
- University of Cambridge, Department of Veterinary Medicine, Cambridge, United Kingdom
- Microsoft Research, Redmond, Washington, United States of America
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Le BCT, Ekalaksananan T, Thaewnongiew K, Phanthanawiboon S, Aromseree S, Phanitchat T, Chuerduangphui J, Suwannatrai AT, Alexander N, Overgaard HJ, Bangs MJ, Pientong C. Interepidemic Detection of Chikungunya Virus Infection and Transmission in Northeastern Thailand. Am J Trop Med Hyg 2020; 103:1660-1669. [PMID: 32700661 DOI: 10.4269/ajtmh.20-0293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Chikungunya fever is a viral mosquito-borne, acute febrile illness associated with rash, joint pain, and occasionally prolonged polyarthritis. Chikungunya outbreaks have been reported worldwide including many provinces of Thailand. Although chikungunya virus (CHIKV) occurs in Thailand, details on its epidemiology are lacking compared with dengue, a common mosquito-borne disease in the country. Therefore, study on CHIKV and its epidemiology in both humans and mosquitoes is required to better understand its importance clinically and dynamics in community settings. So a prospective examination of virus circulation in human and mosquito populations in northeastern Thailand using serological and molecular methods, including the genetic characterization of the virus, was undertaken. The study was conducted among febrile patients in eight district hospitals in northeastern Thailand from June 2016 to October 2017. Using real-time PCR on the conserved region of nonstructural protein 1 gene, CHIKV was detected in eight (4.9%) of 161 plasma samples. Only one strain yielded a sequence of sufficient size allowing for phylogenetic analysis. In addition, anti-CHIKV IgM and IgG were detected in six (3.7%) and 17 (10.6%) patient plasma samples. The single sequenced sample belonged to the East/Central/South Africa (ECSA) genotype and was phylogenetically similar to the Indian Ocean sub-lineage. Adult Aedes mosquitoes were collected indoors and within a 100-m radius from the index case house and four neighboring houses. CHIKV was detected in two of 70 (2.9%) female Aedes aegypti mosquito pools. This study clearly demonstrated the presence and local transmission of the ECSA genotype of CHIKV in the northeastern region of Thailand.
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Affiliation(s)
- Bao Chi Thi Le
- Department of Microbiology, University of Medicine and Pharmacy, Hue University, Hue, Vietnam.,Department of Microbiology, Khon Kaen University, Khon Kaen, Thailand
| | - Tipaya Ekalaksananan
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.,Department of Microbiology, Khon Kaen University, Khon Kaen, Thailand
| | - Kesorn Thaewnongiew
- Department of Disease Control, Office of Disease Prevention and Control, Region 7 Khon Kaen Ministry of Public Health, Khon Kaen, Thailand
| | | | - Sirinart Aromseree
- HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand.,Department of Microbiology, Khon Kaen University, Khon Kaen, Thailand
| | - Thipruethai Phanitchat
- Department of Medical Entomology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | | | - Neal Alexander
- MRC Tropical Epidemiology Group, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Hans J Overgaard
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Michael J Bangs
- Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.,Public Health & Malaria Control, PT Freeport Indonesia/International SOS, Kuala Kencana, Papua, Indonesia
| | - Chamsai Pientong
- Department of Microbiology, Khon Kaen University, Khon Kaen, Thailand.,HPV & EBV and Carcinogenesis Research Group, Khon Kaen University, Khon Kaen, Thailand
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Kyaw AK, Tun MMN, Nabeshima T, Soe AM, Thida T, Aung TH, Htwe TT, Myaing SS, Mar TT, Aung T, Win KMM, Mar Myint K, Lwin EP, Thu HM, Buerano CC, Thant KZ, Morita K. Chikungunya Virus Infection in Blood Donors and Patients During Outbreak, Mandalay, Myanmar, 2019. Emerg Infect Dis 2020; 26:2741-2745. [PMID: 33079056 PMCID: PMC7588511 DOI: 10.3201/eid2611.201824] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In 2019, an outbreak of chikungunya virus infection occurred in Mandalay, Myanmar, and 3.2% of blood donors and 20.5% of patients who were children were confirmed as being infected. The prevalence rate was up to 6.3% among blood donors. The East Central/South African genotype was predominantly circulating during this outbreak.
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Díaz-Menéndez M, Esteban ET, Ujiie M, Calleri G, Rothe C, Malvy D, Nicastri E, Bissinger AL, Grandadam M, Alpern JD, Gobbi F, Schlagenhauf P, Duvignaud A, Javelle E, Nakamoto T, Antinori S, Hamer DH. Travel-associated chikungunya acquired in Myanmar in 2019. ACTA ACUST UNITED AC 2020; 25. [PMID: 31937394 PMCID: PMC6961262 DOI: 10.2807/1560-7917.es.2020.25.1.1900721] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Eighteen cases of chikungunya virus infection in travellers returning from Myanmar were reported to the GeoSentinel Surveillance Network, its subnetwork EuroTravNet and TropNet in 2019, reflecting an ongoing local outbreak. This report reinforces the importance of travellers as sentinels of emerging arboviral outbreaks and highlights the importance of vigilance for imported cases, due to the potential for dissemination of the virus into areas with competent local vectors and conducive environmental conditions.
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Affiliation(s)
- Marta Díaz-Menéndez
- These authors contributed equally to the work.,National Referral Unit for Imported Tropical Diseases. Department of Internal Medicine. Hospital Universitario La Paz-Carlos III, IdiPAZ, Madrid, Spain
| | - Elena Trigo Esteban
- These authors contributed equally to the work.,National Referral Unit for Imported Tropical Diseases. Department of Internal Medicine. Hospital Universitario La Paz-Carlos III, IdiPAZ, Madrid, Spain
| | - Mugen Ujiie
- Vaccination Support Center, Disease Control and Prevention Center. National Center for Global Health and Medicine, Tokyo, Japan
| | - Guido Calleri
- Travel Medicine Unit. Amedeo di Savoia Hospital. ASL Città di Torino, Torino, Italy
| | - Camilla Rothe
- LMU Hospital Centre, Division of Infectious Diseases and Tropical Medicine, Munich, Germany
| | - Denis Malvy
- Department of Infectious Diseases and Tropical Medicine, CHU de Bordeaux & INSERM 1219, University of Bordeaux, Bordeaux, France
| | - Emanuele Nicastri
- National Institute for Infectious Diseases Lazzaro Spallanzani, IRCCS, Rome, Italy
| | - Alfred L Bissinger
- Institute for Tropical Medicine, Department of Internal Medicine, University Hospital Tübingen, Germany
| | - Marc Grandadam
- Arbovirus & Emerging viral diseases laboratory. Institut Pasteur du Laos, Vientiane, Laos
| | - Jonathan D Alpern
- Department of Travel and Tropical Medicine, HealthPartners; Department of Medicine, University of Minnesota, Minneapolis, United States
| | - Federico Gobbi
- Department of Infectious /Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Verona, Italy
| | - Patricia Schlagenhauf
- University of Zürich Centre for Travel Medicine, WHO Collaborating Centre for Travellers' Health, Zürich, Switzerland
| | - Alexandre Duvignaud
- Department of Infectious Diseases and Tropical Medicine, CHU de Bordeaux & INSERM 1219, University of Bordeaux, Bordeaux, France
| | - Emilie Javelle
- Laveran Military Teaching Hospital, Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - Takato Nakamoto
- Disease Control and Prevention Center, National Center for Global health and Medicine, Tokyo, Japan
| | - Spinello Antinori
- Department of Biomedical and Clinical Sciences "L Sacco", University of Milan. Tropical Medicine Unit, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Davidson H Hamer
- Department of Global Health and Boston University School of Public Health and Section of Infectious Diseases, Department of Medicine, Boston University School of Medicine, Boston, MA, United States
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Fox JM, Huang L, Tahan S, Powell LA, Crowe JE, Wang D, Diamond MS. A cross-reactive antibody protects against Ross River virus musculoskeletal disease despite rapid neutralization escape in mice. PLoS Pathog 2020; 16:e1008743. [PMID: 32760128 PMCID: PMC7433899 DOI: 10.1371/journal.ppat.1008743] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 08/18/2020] [Accepted: 06/25/2020] [Indexed: 01/01/2023] Open
Abstract
Arthritogenic alphaviruses cause debilitating musculoskeletal disease and historically have circulated in distinct regions. With the global spread of chikungunya virus (CHIKV), there now is more geographic overlap, which could result in heterologous immunity affecting natural infection or vaccination. Here, we evaluated the capacity of a cross-reactive anti-CHIKV monoclonal antibody (CHK-265) to protect against disease caused by the distantly related alphavirus, Ross River virus (RRV). Although CHK-265 only moderately neutralizes RRV infection in cell culture, it limited clinical disease in mice independently of Fc effector function activity. Despite this protective phenotype, RRV escaped from CHK-265 neutralization in vivo, with resistant variants retaining pathogenic potential. Near the inoculation site, CHK-265 reduced viral burden in a type I interferon signaling-dependent manner and limited immune cell infiltration into musculoskeletal tissue. In a parallel set of experiments, purified human CHIKV immune IgG also weakly neutralized RRV, yet when transferred to mice, resulted in improved clinical outcome during RRV infection despite the emergence of resistant viruses. Overall, this study suggests that weakly cross-neutralizing antibodies can protect against heterologous alphavirus disease, even if neutralization escape occurs, through an early viral control program that tempers inflammation. The induction of broadly neutralizing antibodies is a goal of many antiviral vaccine programs. In this study, we show that cross-reactive monoclonal and polyclonal antibodies developed after CHIKV infection or immunization with relatively weak cross-neutralizing activity can protect against RRV-induced musculoskeletal disease in mice. Even though RRV rapidly escaped from neutralization, antibody therapy reduced inflammation in musculoskeletal tissues and decreased viral burden near the site of infection in a manner that required type I interferon signaling. These studies in mice show that broadly reactive antibodies with limited neutralizing activity still can confer protection against heterologous alphaviruses.
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Affiliation(s)
- Julie M. Fox
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, United States of America
| | - Ling Huang
- MacroGenics, Rockville, Maryland, United States of America
| | - Stephen Tahan
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, Missouri, United States of America
| | - Laura A. Powell
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - James E. Crowe
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Vaccine Center and Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - David Wang
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, Missouri, United States of America
| | - Michael S. Diamond
- Department of Medicine, Washington University in St. Louis, St. Louis, Missouri, United States of America
- Department of Molecular Microbiology, Washington University in St. Louis, St. Louis, Missouri, United States of America
- Department of Pathology and Immunology, Washington University in St. Louis, St. Louis, Missouri, United States of America
- * E-mail:
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Harapan H, Yufika A, Anwar S, Te H, Hasyim H, Nusa R, Dhewantara PW, Mudatsir M. Effects of El Niño Southern Oscillation and Dipole Mode Index on Chikungunya Infection in Indonesia. Trop Med Infect Dis 2020; 5:E119. [PMID: 32708686 PMCID: PMC7558115 DOI: 10.3390/tropicalmed5030119] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/02/2020] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to assess the possible association of El Niño Southern Oscillation (ENSO) and Dipole Mode Index (DMI) on chikungunya incidence overtime, including the significant reduction in cases that was observed in 2017 in Indonesia. Monthly nation-wide chikungunya case reports were obtained from the Indonesian National Disease Surveillance database, and incidence rates (IR) and case fatality rate (CFR) were calculated. Monthly data of Niño3.4 (indicator used to represent the ENSO) and DMI between 2011 and 2017 were also collected. Correlations between monthly IR and CFR and Niño3.4 and DMI were assessed using Spearman's rank correlation. We found that chikungunya case reports declined from 1972 cases in 2016 to 126 cases in 2017, a 92.6% reduction; the IR reduced from 0.67 to 0.05 cases per 100,000 population. No deaths associated with chikungunya have been recorded since its re-emergence in Indonesia in 2001. There was no significant correlation between monthly Niño3.4 and chikungunya incidence with r = -0.142 (95%CI: -0.320-0.046), p = 0.198. However, there was a significant negative correlation between monthly DMI and chikungunya incidence, r = -0.404 (95%CI: -0.229--0.554) with p < 0.001. In conclusion, our initial data suggests that the climate variable, DMI but not Niño3.4, is likely associated with changes in chikungunya incidence. Therefore, further analysis with a higher resolution of data, using the cross-wavelet coherence approach, may provide more robust evidence.
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Affiliation(s)
- Harapan Harapan
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; (A.Y.); (M.M.)
- Department of Microbiology, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
- Tropical Disease Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
| | - Amanda Yufika
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; (A.Y.); (M.M.)
- Department of Family Medicine, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
| | - Samsul Anwar
- Department of Statistics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia;
| | - Haypheng Te
- Siem Reap Provincial Health Department, Ministry of Health, Siem Reap 1710, Cambodia;
| | - Hamzah Hasyim
- Faculty of Public Health, Sriwijaya University, Indralaya, South Sumatra 30862, Indonesia;
| | - Roy Nusa
- Vector-Borne Disease Control, Research and Development Council, Ministry of Health, Jakarta 10560, Indonesia;
| | - Pandji Wibawa Dhewantara
- Pangandaran Unit of Health Research and Development, National Institute of Health Research and Development (NIHRD), Ministry of Health of Indonesia, West Java 46396, Indonesia;
- UQ Spatial Epidemiology Laboratory, School of Veterinary Science, The University of Queensland, Gatton, QLD 4343, Australia
| | - Mudatsir Mudatsir
- Medical Research Unit, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia; (A.Y.); (M.M.)
- Department of Microbiology, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
- Tropical Disease Centre, School of Medicine, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
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Development of magnetic bead based sample extraction coupled polymerase spiral reaction for rapid on-site detection of Chikungunya virus. Sci Rep 2020; 10:11651. [PMID: 32669639 PMCID: PMC7363856 DOI: 10.1038/s41598-020-68469-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 06/25/2020] [Indexed: 11/25/2022] Open
Abstract
The molecular detection system has evolved over last two decades and is rapidly replacing the conventional confirmatory techniques in diagnostic virology. However the major limitation in implementation of available molecular detection assays is the non availability of field deployable nucleic acid isolation platform coupled with gene amplification technique. The rapid and early molecular detection is crucial for employing effective measure against many viral infections. The re-emergence of chikungunya virus (CHIKV) has led to epidemics since 2004 in several parts of the world including India. The main association of CHIKV with severe arthritis and long-lasting arthralgia and closely mimics symptoms of Dengue and Zika virus infection requiring laboratory confirmation. In this study, a simple magnetic bead based ribonucleic acid extraction method was optimized, which was coupled with isothermal polymerase spiral reaction (PSR) technique for early and rapid detection. Subsequently, the polymerase spiral reaction reagents were converted to dry down format that led to a rapid user friendly field compatible sample processing to answer method for rapid and onsite detection of Chikungunya virus. Both the methods were evaluated with a panel of clinical samples. The sensitivity of the assays were compared with available commercial viral RNA extraction platform and qRT-PCR. The in-house nucleic acid extraction system based on magnetic bead followed by dry down RT-Polymerase Spiral Reaction assay was found to be highly sensitive with 10 copies of RNA as limit of detection in CHIKV clinical specimens. With respect to other closely related viruses no cross reactivity was observed. This novel methodology has the potential to revolutionize the diagnosis of infectious agents in resource limited settings around the world.
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Chirathaworn C, Chansaenroj J, Poovorawan Y. Cytokines and Chemokines in Chikungunya Virus Infection: Protection or Induction of Pathology. Pathogens 2020; 9:pathogens9060415. [PMID: 32471152 PMCID: PMC7350363 DOI: 10.3390/pathogens9060415] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 01/08/2023] Open
Abstract
Chikungunya virus (CHIKV) infection has been commonly detected in tropical countries. The clinical manifestations of CHIKV infection are similar to those of rheumatoid arthritis. Outbreaks of CHIKV infection in Thailand have been reported, and the inductions of various cytokines and chemokines in CHIKV patients during those outbreaks have been shown. Although immune responses in CHIKV infection have been increasingly reported, the mechanisms associated with pathology induction are still not clearly understood. This review focuses on cytokine and chemokine production in CHIKV infection, in association with the severity of joint inflammation. Several cytokines and chemokines involved in the induction or regulation of inflammatory responses were shown to associate with the severe and persistent symptoms in CHIKV infection. Further studies on the difference in immune responses observed in an autoimmune disease, rheumatoid arthritis, infectious disease, and CHIKV infection, would provide additional insights useful for proper CHIKV therapy, especially in patients with severe joint pains.
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Affiliation(s)
- Chintana Chirathaworn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Jira Chansaenroj
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
- Correspondence: ; Tel.: +66-2256-4909; Fax: +66-2256-4929
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Cerbino-Neto J, Mesquita EC, Amancio RT, Brasil PEAAD. Events preceding death among chikungunya virus infected patients: a systematic review. Rev Soc Bras Med Trop 2020; 53:e04312019. [PMID: 32401863 PMCID: PMC7269536 DOI: 10.1590/0037-8682-0431-2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/24/2020] [Indexed: 12/20/2022] Open
Abstract
Since its re-emergence in the late 1990s, there have been reports of Chikungunya fever (CHIK-F) presenting with severe or atypical findings. There is little knowledge regarding the clinical events leading to the death of patients with CHIK-F. This study aimed to systematically review the literature regarding CHIK-F and identify clinical features preceding death. We searched PubMed, Scopus, Embase, Lilacs, and IsiWeb for case-reports, case-series, or cohorts of CHIK-F reporting at least one death, up to December 2019. Fifty-seven reports were analyzed, including 2140 deaths. Data about specific clinical events that precede death are scarce. The central tendency of time between disease onset and death ranged from 2 days to 150 days. The most common clinical findings among decedents were fever (22.0%), arthralgia (15.7%), myalgia (10.7%), and headache (8.2%). Excluding pediatric populations, the reported central tendency of age among the decedents was 53 or older, with a non-weighted median of 67, ranging up to 80 years old. Authors mentioned organic dysfunction in 91.2% reports. Among all the 2140 decedents, the most common dysfunctions were cardiovascular (7.2%), respiratory (6.4%), neurological (5.4%), renal (4.2%), liver (3.0%), and hematological (1.3%) dysfunction. Exacerbation of previous diabetes (5.6%) or hypertension (6.9%) was mentioned as conditions preceding death. Currently, older age, primary neurological, cardiovascular, or respiratory dysfunction and a previous diagnosis of diabetes or hypertension are the main clinical events preceding death.
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Affiliation(s)
- José Cerbino-Neto
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
| | | | - Rodrigo Teixeira Amancio
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
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Abstract
Introduction: Chikungunya virus (CHIKV), a reemerging human arthropod borne virus, can causes global epidemic outbreaks and has become a serious health concern due to the unavailability of any antiviral therapy/vaccine. Extensive research has been conducted to target different proteins from CHIKV to curtail the spread of virus.Areas covered: This review provides an overview of the granted patents including the current status of antiviral strategies targeting CHIKV.Expert opinion: Under the current scenario, potential molecules and different approaches have been utilized to suppress CHIKV infection. MV-CHIKV and VRC-CHKVLP059-00-VP vaccine candidates have successfully completed phase I clinical trials and ribavirin (inhibitor) has shown significant inhibition of CHIKV replication and could be the most promising candidates. The drug resistance and toxicity can be modulated by using the inhibitors/drugs in combination. Moreover, nanoparticle formulations can improve the efficacy and bioavailability of drugs.
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Affiliation(s)
- Ritu Ghildiyal
- Center for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, U P, India
| | - Reema Gabrani
- Center for Emerging Diseases, Department of Biotechnology, Jaypee Institute of Information Technology, Noida, U P, India
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Caputo B, Moretti R, Manica M, Serini P, Lampazzi E, Bonanni M, Fabbri G, Pichler V, Della Torre A, Calvitti M. A bacterium against the tiger: preliminary evidence of fertility reduction after release of Aedes albopictus males with manipulated Wolbachia infection in an Italian urban area. PEST MANAGEMENT SCIENCE 2020; 76:1324-1332. [PMID: 31603613 DOI: 10.1002/ps.5643] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/27/2019] [Accepted: 10/03/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Novel tools are needed to reduce the nuisance and risk of exotic arbovirus transmission associated with the colonization of temperate regions by Aedes albopictus. The incompatible insect technique (IIT) is a population suppression approach based on cytoplasmic incompatibility between males with manipulated endosymbionts and wild females. Here, we present the results of the first field experiment in Europe to assess the capacity of an Ae. albopictus line (ARwP) deprived of its natural endosymbiont Wolbachia and transinfected with a Wolbachia strain from the mosquito Culex pipiens, to sterilize wild females. RESULTS We released ∼ 4500 ARwP males weekly for 6 weeks in a green area within urban Rome (Italy) and carried out egg (N = 13 442), female (N = 128) and male (N = 352) collections. Egg (N = 13 783) and female (N = 48) collections were also carried out at two untreated control sites. The percentage of viable eggs during release was, on average, significantly lower in treated sites than in control sites, with the greatest difference (16%) seen after the fourth release. The ARwP to wild male ratio in the release spots between day 3 after the first ARwP male release and day 7 after the last release was, on average, 7:10. Released males survived up to 2 weeks. Approximately 30% of females collected in the release spots showed 100% sterility and 20% showed strongly reduced fertility compared with control sites. CONCLUSIONS Results support the potential of IIT as a tool contributing to Ae. albopictus control in the urban context, and stress the need for larger field trials to evaluate the cost-efficacy of the approach in suppressing wild populations. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Beniamino Caputo
- Department of Public Health and Infectious Diseases, Università di Roma Sapienza, Rome, Italy
| | - Riccardo Moretti
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
| | - Mattia Manica
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, Trento, Italy
| | - Paola Serini
- Department of Public Health and Infectious Diseases, Università di Roma Sapienza, Rome, Italy
| | - Elena Lampazzi
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
| | - Marco Bonanni
- Department of Public Health and Infectious Diseases, Università di Roma Sapienza, Rome, Italy
| | - Giulia Fabbri
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
| | - Verena Pichler
- Department of Public Health and Infectious Diseases, Università di Roma Sapienza, Rome, Italy
| | - Alessandra Della Torre
- Department of Public Health and Infectious Diseases, Università di Roma Sapienza, Rome, Italy
| | - Maurizio Calvitti
- Biotechnology and Agroindustry Division, ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Casaccia Research Center, Rome, Italy
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Amaral JK, Bilsborrow JB, Schoen RT. Chronic Chikungunya Arthritis and Rheumatoid Arthritis: What They Have in Common. Am J Med 2020; 133:e91-e97. [PMID: 31705850 PMCID: PMC7385732 DOI: 10.1016/j.amjmed.2019.10.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/01/2019] [Accepted: 10/02/2019] [Indexed: 12/29/2022]
Abstract
Chikungunya virus (CHIKV) is a single-stranded RNA virus belonging to the family Togaviridae and genus Alphavirus that causes an acute febrile illness, chikungunya fever, which is transmitted to humans by Aedes species mosquitoes. During acute illness, patients have high fever, polyarthralgias or polyarthritis, maculopapular rash, headache, and myalgia that lasts for days to weeks. Following resolution of acute infection, a significant proportion of patients develop chronic chikungunya arthritis that can resemble rheumatoid arthritis. In this review, we first consider the historical background of infectious causes of inflammatory arthritis, and then the pathogenic and clinical manifestations of chronic chikungunya arthritis as a rheumatoid arthritis mimic. We believe that chronic chikungunya arthritis may be a postinfectious inflammatory process, and that an understanding of the parallels and differences between chronic chikungunya arthritis and rheumatoid arthritis may offer insights into better diagnosis and treatment of both diseases.
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Affiliation(s)
- J Kennedy Amaral
- Federal University of Minas Gerais, Department of Infectious Diseases and Tropical Medicine, Belo Horizonte, Minas Gerais, Brazil.
| | - Joshua B Bilsborrow
- Section of Rheumatology, Allergy and Immunology, Yale University School of Medicine, New Haven, Conn
| | - Robert T Schoen
- Section of Rheumatology, Allergy and Immunology, Yale University School of Medicine, New Haven, Conn
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Harsha PK, Reddy V, Rao D, Pattabiraman C, Mani RS. Continual circulation of ECSA genotype and identification of a novel mutation I317V in the E1 gene of Chikungunya viral strains in southern India during 2015-2016. J Med Virol 2020; 92:1007-1012. [PMID: 31900943 DOI: 10.1002/jmv.25662] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/26/2019] [Indexed: 11/08/2022]
Abstract
Chikungunya, a mosquito-borne disease caused by Chikungunya virus (CHIKV), continues to be a significant public health problem in India. In 2016, 56 000 cases were reported from India, the largest number since the reemergence of CHIKV in this region in 2006. In the present study, using molecular and phylogenetic methods, the circulating strains from southern India during 2015-2016 were characterized in the context of circulating Asian strains. Partial envelope gene (E1) sequencing was performed on 20 serum samples positive for CHIKV by a reverse transcription-polymerase chain reaction. Phylogenetic analysis showed that all the sequences in this study belonged to the East Central South African (ECSA) genotype and clustered together with other strains from India. Bayesian phylogenetic analysis revealed that the sequences from the study grouped into two different subclades. The estimate of divergence times suggests that subclades of the ECSA genotype, share a common ancestor approximately 4 to 12 years ago. Six nonsynonymous mutations-K211E, M269V, D284E, V322A, I317V and V220I were noted in E1. In conclusion, this study revealed the cocirculation of distinct subclades within the ECSA genotype of CHIKV in South India during 2015-2016. The I317V mutation in E1 has only been described in recent CHIKV strains from north-central India and Bangladesh. This study highlights the need for continued molecular surveillance to identify the emergence of novel strains and unique mutations in CHIKV with epidemic potential.
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Affiliation(s)
- Pulleri Kandi Harsha
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Vijayalakshmi Reddy
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Deepashri Rao
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Chitra Pattabiraman
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Reeta S Mani
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
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Genome sequences of chikungunya virus isolates from an outbreak in southwest Bangkok in 2018. Arch Virol 2019; 165:445-450. [PMID: 31834526 DOI: 10.1007/s00705-019-04509-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 11/25/2019] [Indexed: 10/25/2022]
Abstract
An outbreak of chikungunya virus (CHIKV) infection occurred in southwest Bangkok during the 2018 rainy season. The envelope glycoprotein E1 gene sequence of the infecting strain belonged to an East/Central/South African lineage with alanine at residue 226. Mutations in the predicted E1 (K211E) and E2 (V264A) proteins of CHIKV were identified in CHIKV-infected patients and in an Aedes aegypti mosquito. Analysis of the complete genome sequences showed marked differences from the strains causing previous outbreaks in Thailand in 2008-2009 and 2013 but showed similarities to strains from more recent CHIKV outbreaks in South and Southeast Asia.
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