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Nii-Trebi NI, Mughogho TS, Abdulai A, Tetteh F, Ofosu PM, Osei MM, Yalley AK. Dynamics of viral disease outbreaks: A hundred years (1918/19-2019/20) in retrospect - Loses, lessons and emerging issues. Rev Med Virol 2023; 33:e2475. [PMID: 37602770 DOI: 10.1002/rmv.2475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/22/2023]
Abstract
Infectious diseases continue to be the leading cause of morbidity and mortality, and a formidable obstacle to the development and well-being of people worldwide. Viruses account for more than half of infectious disease outbreaks that have plagued the world. The past century (1918/19-2019/20) has witnessed some of the worst viral disease outbreaks the world has recorded, with overwhelming impact especially in low- and middle-income countries (LMIC). The frequency of viral disease outbreak appears to be increasing. Generally, although infectious diseases have afflicted the world for centuries and humankind has had opportunities to examine the nature of their emergence and mode of spread, almost every new outbreak poses a formidable challenge to humankind, beating the existing pandemic preparedness systems, if any, and causing significant losses. These underscore inadequacy in our understanding of the dynamics and preparedness against viral disease outbreaks that lead to epidemics and pandemics. Despite these challenges, the past 100 years of increasing frequencies of viral disease outbreaks have engendered significant improvements in response to epidemics and pandemics, and offered lessons to inform preparedness. Hence, the increasing frequency of emergence of viral outbreaks and the challenges these outbreaks pose to humankind, call for the continued search for effective ways to tackle viral disease outbreaks in real time. Through a PRISMA-based approach, this systematic review examines the outbreak of viral diseases in retrospect to decipher the outbreak patterns, losses inflicted on humanity and highlights lessons these offer for meaningful preparation against future viral disease outbreaks and pandemics.
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Affiliation(s)
- Nicholas I Nii-Trebi
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
| | | | - Anisa Abdulai
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Francis Tetteh
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Priscilla M Ofosu
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
| | - Mary-Magdalene Osei
- Department of Medical Microbiology, University of Ghana Medical School, Accra, Ghana
| | - Akua K Yalley
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
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Abstract
Background Zoonotic diseases, infections transmitted naturally from animals to humans, pose a significant public health challenge worldwide. After MERS-CoV was discovered, interest in camels was raised as potential intermediate hosts for zoonotic viruses. Most published review studies pay little attention to case reports or zoonotic epidemics where there is epidemiological proof of transmission from camels to humans. Accordingly, any pathogen found in camels known to cause zoonotic disease in other animals or humans is reported. Methods Here, zoonotic diseases linked to camels are reviewed in the literature, focusing on those with epidemiological or molecular evidence of spreading from camels to humans. This review examines the risks posed by camel diseases to human health, emphasizing the need for knowledge and awareness in mitigating these risks. Results A search of the literature revealed that eight (36.4%) of the 22 investigations that offered convincing evidence of camel-to-human transmission involved MERS, five (22.7%) Brucellosis, four (18.2%) plague caused by Yersinia pestis, three (13.6%) camelpox, one (4.5%) hepatitis E, and one (4.5%) anthrax. The reporting of these zoonotic diseases has been steadily increasing, with the most recent period, from 2010 to the present, accounting for 59% of the reports. Additionally, camels have been associated with several other zoonotic diseases, including toxoplasmosis, Rift Valley fever, TB, Crimean-Congo hemorrhagic fever, and Q fever, despite having no evidence of a transmission event. Transmission of human zoonotic diseases primarily occurs through camel milk, meat, and direct or indirect contact with camels. The above-mentioned diseases were discussed to determine risks to human health. Conclusion MERS, Brucellosis, plague caused by Y. pestis, camelpox, hepatitis E, and anthrax are the main zoonotic diseases associated with human disease events or outbreaks. Transmission to humans primarily occurs through camel milk, meat, and direct contact with camels. There is a need for comprehensive surveillance, preventive measures, and public health interventions based on a one-health approach to mitigate the risks of zoonotic infections linked to camels.
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Affiliation(s)
- Abdelmalik Ibrahim Khalafalla
- Development and Innovation Sector, Biosecurity Affairs Division, Abu Dhabi Agriculture and Food Safety Authority (ADAFSA), Abu Dhabi, United Arab Emirates
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Agabou A, Benaissa MH, Bouasla I, De Sabato L, Hireche S, Ianiro G, Monini M, Di Bartolo I. First serological and molecular investigation of hepatitis E virus infection in dromedary camels in Algeria. Front Vet Sci 2023; 10:1272250. [PMID: 37795011 PMCID: PMC10546018 DOI: 10.3389/fvets.2023.1272250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/31/2023] [Indexed: 10/06/2023] Open
Abstract
Hepatitis E is an acute self-limited or fulminant infection in humans, caused by the hepatitis E virus (HEV). This member of the Hepeviridae family has been identified in a wide range of domestic and wild animals all over the world, with a possible transmission to humans through fecal oral route, direct contact and ingestion of contaminated meat products, making it one of the global zoonotic and public health major concerns. Since there is no monitoring program and a lack of data on HEV in animals in Algeria, the current preliminary survey has been undertaken to elucidate the exposure to the virus in camels at abattoirs of six southern provinces of Algeria. Two-hundred and eight sera/plasma were collected and analyzed (by double antigen sandwich ELISA) for the presence of total anti-HEV antibodies, among which 35.1% were positive, but no HEV RNA could be isolated from them (by two pan-HEV nested RT-PCR and broad range real-time reverse transcription RT-PCR). The univariate analysis showed significant associations (p < 0.05) between HEV seroprevalence and province of origin, age, and sex of camels, whereas the multivariable logistic regression analysis revealed a negative impact of camels' age on it. The obtained results confirm that HEV infection is widespread established in the camelid population of Algeria.
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Affiliation(s)
- Amir Agabou
- PADESCA Research Laboratory, Institute of Veterinary Sciences, University Frères Mentouri Constantine 1, Constantine, Algeria
| | | | - Ilyes Bouasla
- PADESCA Research Laboratory, Institute of Veterinary Sciences, University Frères Mentouri Constantine 1, Constantine, Algeria
| | - Luca De Sabato
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Sana Hireche
- PADESCA Research Laboratory, Institute of Veterinary Sciences, University Frères Mentouri Constantine 1, Constantine, Algeria
| | - Giovanni Ianiro
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Marina Monini
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Ilaria Di Bartolo
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Rome, Italy
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Belhout C, Boyen F, Vereecke N, Theuns S, Taibi N, Stegger M, de la Fé-Rodríguez PY, Bouayad L, Elgroud R, Butaye P. Prevalence and Molecular Characterization of Methicillin-Resistant Staphylococci (MRS) and Mammaliicocci (MRM) in Dromedary Camels from Algeria: First Detection of SCC mec- mecC Hybrid in Methicillin-Resistant Mammaliicoccus lentus. Antibiotics (Basel) 2023; 12:674. [PMID: 37107036 PMCID: PMC10134997 DOI: 10.3390/antibiotics12040674] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/26/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Dromedary camels are an important source of food and income in many countries. However, it has been largely overlooked that they can also transmit antibiotic-resistant bacteria. The aim of this study was to identify the Staphylococcaceae bacteria composition of the nasal flora in dromedary camels and evaluate the presence of methicillin-resistant Mammaliicoccus (MRM) and methicillin-resistant Staphylococcus (MRS) in dromedary camels in Algeria. Nasal swabs were collected from 46 camels from seven farms located in two different regions of Algeria (M'sila and Ouargla). We used non-selective media to determine the nasal flora, and antibiotic-supplemented media to isolate MRS and MRM. The staphylococcal isolates were identified using an Autoflex Biotyper Mass Spectrometer (MALDI-TOF MS). The mecA and mecC genes were detected by PCR. Methicillin-resistant strains were further analysed by long-read whole genome sequencing (WGS). Thirteen known Staphylococcus and Mammaliicoccus species were identified in the nasal flora, of which half (49.2%) were coagulase-positive staphylococci. The results showed that four out of seven farms were positive for MRS and/or MRM, with a total of 16 isolates from 13 dromedary camels. The predominant species were M. lentus, S. epidermidis, and S. aureus. Three methicillin-resistant S. aureus (MRSA) were found to be ST6 and spa type t304. Among methicillin-resistant S. epidermidis (MRSE), ST61 was the predominant ST identified. Phylogenetic analysis showed clonal relatedness among M. lentus strains, while S. epidermidis strains were not closely related. Resistance genes were detected, including mecA, mecC, ermB, tet(K), and blaZ. An SCCmec type VIII element was found in a methicillin-resistant S. hominis (MRSH) belonging to the ST1 strain. An SCCmec-mecC hybrid element was detected in M. lentus, similar to what was previously detected in M. sciuri. This study highlights that dromedary camels may be a reservoir for MRS and MRM, and that they contain a specific set of SCCmec elements. This emphasizes the need for further research in this ecological niche from a One Health perspective.
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Affiliation(s)
- Chahrazed Belhout
- HASAQ Laboratory, High National Veterinary School, Issad Abbes Avenue, Oued Smar, El Harrach, Algiers 16270, Algeria
| | - Filip Boyen
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Nick Vereecke
- PathoSense, Pastoriestraat 10, 2500 Lier, Belgium
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Sebastiaan Theuns
- PathoSense, Pastoriestraat 10, 2500 Lier, Belgium
- Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Nadia Taibi
- Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC), Bou-Ismail, Tipaza 42415, Algeria
| | - Marc Stegger
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Artillerivej 5, 2300 Copenhagen, Denmark
| | - Pedro Yoelvys de la Fé-Rodríguez
- Departamento de Medicina Veterinaria y Zootecnia, Facultad de Ciencias Agropecuarias, Universidad Central “Marta Abreu” de Las Villas, Carretera a Camajuaní km 5½, Santa Clara 54 830, Cuba
| | - Leila Bouayad
- HASAQ Laboratory, High National Veterinary School, Issad Abbes Avenue, Oued Smar, El Harrach, Algiers 16270, Algeria
| | - Rachid Elgroud
- Institute of Veterinary Sciences, University Frères Mentouri Constantine 1, Constantine 25017, Algeria
| | - Patrick Butaye
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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Premraj A, Aleyas AG, Nautiyal B, Rasool TJ. Novel type-I interferons from the dromedary camel: Molecular identification, prokaryotic expression and functional characterization of camelid interferon-delta. Mol Immunol 2023; 153:212-225. [PMID: 36563641 DOI: 10.1016/j.molimm.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022]
Abstract
The last two decades have seen the emergence of three highly pathogenic coronaviruses with zoonotic origins, which prompted immediate attention to the underlying cause and prevention of future outbreaks. Intensification of camel husbandry in the Middle East has resulted in increased human-camel interactions, which has led to the spread of potentially zoonotic viruses with human spillover risks like MERS-coronavirus, camelpox virus, etc. Type-I interferons function as the first line of defense against invading viruses and are pivotal for limiting viral replication and immune-mediated pathologies. Seven novel dromedary camel interferon delta genes were identified and cloned. Functional characterization of this novel class of IFNs from the mammalian suborder tylopoda is reported for the first time. The camel interferon-delta proteins resemble the reported mammalian counterparts in sequence similarity, conservation of cysteines, and phylogenetic proximity. Prokaryotically expressed recombinant camel interferon-δ1 induced IFN-stimulated gene expression and also exerted antiviral action against camelpox virus, an endemic zoonotic virus. The pre-treatment of camel kidney cells with recombinant camel IFN-δ1 increased cell survival and reduced camelpox virus in a dose-dependent manner. The identification of novel IFNs from species with zoonotic spillover risk such as camels, and evaluating their antiviral effects in-vitro will play a key role in improving immunotherapies against viruses and expanding the arsenal to combat emerging zoonotic pathogens.
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Affiliation(s)
- Avinash Premraj
- Camel Biotechnology Center, Presidential Camels & Camel Racing Affairs Centre, Department of the President's Affairs, P.O. Box 17292, Al Ain, United Arab Emirates
| | - Abi George Aleyas
- Camel Biotechnology Center, Presidential Camels & Camel Racing Affairs Centre, Department of the President's Affairs, P.O. Box 17292, Al Ain, United Arab Emirates
| | - Binita Nautiyal
- Camel Biotechnology Center, Presidential Camels & Camel Racing Affairs Centre, Department of the President's Affairs, P.O. Box 17292, Al Ain, United Arab Emirates
| | - Thaha Jamal Rasool
- Camel Biotechnology Center, Presidential Camels & Camel Racing Affairs Centre, Department of the President's Affairs, P.O. Box 17292, Al Ain, United Arab Emirates.
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Rahmeh R, Akbar A, Alomirah H, Kishk M, Al-Ateeqi A, Shajan A, Alonaizi T, Esposito A. Assessment of mastitis in camel using high-throughput sequencing. PLoS One 2022; 17:e0278456. [PMID: 36476716 PMCID: PMC9728900 DOI: 10.1371/journal.pone.0278456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Camel milk is recognized as a functional food with significant economic value. Mastitis is one of the most common and costly diseases in the dairy industry. Mastitis, which is caused by pathogens such as bacteria, viruses, fungi, and algae, has an impact on the quality and quantity of milk produced as well as animal health and welfare. There is a paucity of data on the etiological factors that cause camel mastitis. This study reports the bacterial and fungal community involved in clinical camel mastitis using Illumina amplicon sequencing. A total of 25 milk samples were analyzed, including 9 samples with mastitis and 16 healthy samples. The bacterial community in healthy samples was significantly more diverse and abundant than in mastitis samples. The fungal population in mastitis samples, on the other hand, was more diverse and abundant. As compared to healthy samples, the genera Staphylococcus, Streptococcus, Schlegelella, unclassified Enterobacteriaceae, Lactococcus, Jeotgalicoccus. and Klebsiella were found to be abundant in mastitic milk. However, the genera Corynebacterium, Enteractinococcus, unclassified Sphingomonadaceae, Atopostipes, Paenibacillus, Pseudomonas, Lactobacillus, Sphingomonas, Pediococcus and Moraxella were reduced. In the fungal community, mastitis caused a significant increase in the relative abundance of the majority of taxa, including Candida, Phanerochaete, Aspergillus, Cladosporium and unclassified Pyronemataceae, while Penicillium and Alternaria showed a decline in relative abundance. In the bacterial and fungal communities, the discriminant analysis showed 19 and 5 differently abundant genera in healthy milk and mastitic milk, respectively. In conclusion, this study showed a microbiome dysbiosis linked to clinical camel mastitis, with opportunistic pathogens outgrowing commensal bacteria that were reduced. These findings are essential in designing an appropriate control program in the camel dairy herd, as well as in preventing and treating camel mastitis.
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Affiliation(s)
- Rita Rahmeh
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
- * E-mail:
| | - Abrar Akbar
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Husam Alomirah
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Mohamed Kishk
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Abdulaziz Al-Ateeqi
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Anisha Shajan
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Thnayan Alonaizi
- Environment & Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
| | - Alfonso Esposito
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
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Kandeel M. Meta-analysis of seroprevalence and zoonotic infections of Middle East respiratory syndrome coronavirus (MERS-CoV): A one-health perspective. One Health 2022; 15:100436. [PMID: 36168446 DOI: 10.1016/j.onehlt.2022.100436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/24/2022] Open
Abstract
The zoonotic Middle East respiratory syndrome (MERS) is caused by an emerging beta-coronavirus (CoV). The majority of MERS studies have included scattered data from sub-Saharan Africa and the Middle East, and these data have not been analyzed collectively. In this work, a meta-analysis of these studies was conducted to coalesce these results, determine the prevalence and seroprevalence of MERS-CoV in camels and humans, and examine how zoonotic infection rates in dromedary camels are related to human infection rates. After extracting the collected data, the prevalence and seroprevalence at a 95% confidence interval (CI) using a fixed-effects inverse-variance meta-analysis was conducted. Thirteen studies were included. Eight studies included 2905 samples from dromedary camels, of which 1108 (38.14%) were positive for the virus. The prevalence was 8.75[−13.47, 30.98] at 95% CI in dromedary camels and 0.03[−35.23, 35.28] at 95% CI in humans. Ten studies included 7176 serum samples, 5788 (80.66%) of which were positive. The seroprevalence was 20.69[−4.60, 45.99] at 95% CI. The prevalence of MERS-CoV was moderate to high, but the seroprevalence was high. Despite the high prevalence of the virus in camel herds, zoonotic transmissions were not widespread. Further longitudinal and cross-sectional follow-up studies are recommended to provide solid control of MERS-CoV transmission.
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Abstract
Coxiella burnetii is a zoonotic bacterium with an obligatory intracellular lifestyle and has a worldwide distribution. Coxiella burnetii is the causative agent of Q fever in humans and coxiellosis in animals. Since its discovery in 1935, it has been shown to infect a wide range of animal species including mammals, birds, reptiles, and arthropods. Coxiella burnetii infection is of public and veterinary health and economic concern due to its potential for rapid spread and highly infectious nature. Livestock are the primary source of C. burnetii infection in most Q fever outbreaks which occurs mainly through inhalation of contaminated particles. Aside from livestock, many cases of Q fever linked to exposure to wildlife. Changes in the dynamics of human-wildlife interactions may lead to an increased potential risk of interspecies transmission and contribute to the emergence/re-emergence of Q fever. Although C. burnetii transmission is mainly airborne, ticks may act as vectors and play an important role in the natural cycle of transmission of coxiellosis among wild vertebrates and livestock. In this review, we aim to compile available information on vectors, domestic, and wild hosts of C. burnetii, and to highlight their potential role as bacterial reservoirs in the transmission of C. burnetii.
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Yong CY, Liew WPP, Ong HK, Poh CL. Development of virus-like particles-based vaccines against coronaviruses. Biotechnol Prog 2022; 38:e3292. [PMID: 35932092 PMCID: PMC9537895 DOI: 10.1002/btpr.3292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 11/23/2022]
Abstract
Severe acute respiratory syndrome coronavirus (SARS‐CoV), Middle East respiratory syndrome coronavirus (MERS‐CoV), and the current severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) are the most impactful coronaviruses in human history, especially the latter, which brings revolutionary changes to human vaccinology. Due to its high infectivity, the virus spreads rapidly throughout the world and was declared a pandemic in March 2020. A vaccine would normally take more than 10 years to be developed. As such, there is no vaccine available for SARS‐CoV and MERS‐CoV. Currently, 10 vaccines have been approved for emergency use by World Health Organization (WHO) against SARS‐CoV‐2. Virus‐like particle (VLP)s are nanoparticles resembling the native virus but devoid of the viral genome. Due to their self‐adjuvanting properties, VLPs have been explored extensively for vaccine development. However, none of the approved vaccines against SARS‐CoV‐2 was based on VLP and only 4% of the vaccine candidates in clinical trials were based on VLPs. In the current review, we focused on discussing the major advances in the development of VLP‐based vaccine candidates against the SARS‐CoV, MERS‐CoV, and SARS‐CoV‐2, including those in clinical and pre‐clinical studies, to give a comprehensive overview of the VLP‐based vaccines against the coronaviruses.
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Affiliation(s)
- Chean Yeah Yong
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Sepang, Selangor, Malaysia
| | - Winnie Pui Pui Liew
- Department of Nutrition and Dietetics, Faculty of Medicine and Health Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Hui Kian Ong
- Department of Pathology, Faculty of Medicine and Health Science, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Chit Laa Poh
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Bandar Sunway, Selangor, Malaysia
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Weskamm LM, Fathi A, Raadsen MP, Mykytyn AZ, Koch T, Spohn M, Friedrich M, Haagmans BL, Becker S, Sutter G, Dahlke C, Addo MM. Persistence of MERS-CoV-spike-specific B cells and antibodies after late third immunization with the MVA-MERS-S vaccine. Cell Rep Med 2022; 3:100685. [PMID: 35858586 PMCID: PMC9295383 DOI: 10.1016/j.xcrm.2022.100685] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 02/25/2022] [Accepted: 06/16/2022] [Indexed: 04/08/2023]
Abstract
The Middle East respiratory syndrome (MERS) is a respiratory disease caused by MERS coronavirus (MERS-CoV). In follow up to a phase 1 trial, we perform a longitudinal analysis of immune responses following immunization with the modified vaccinia virus Ankara (MVA)-based vaccine MVA-MERS-S encoding the MERS-CoV-spike protein. Three homologous immunizations were administered on days 0 and 28 with a late booster vaccination at 12 ± 4 months. Antibody isotypes, subclasses, and neutralization capacity as well as T and B cell responses were monitored over a period of 3 years using standard and bead-based enzyme-linked immunosorbent assay (ELISA), 50% plaque-reduction neutralization test (PRNT50), enzyme-linked immunospot (ELISpot), and flow cytometry. The late booster immunization significantly increases the frequency and persistence of spike-specific B cells, binding immunoglobulin G1 (IgG1) and neutralizing antibodies but not T cell responses. Our data highlight the potential of a late boost to enhance long-term antibody and B cell immunity against MERS-CoV. Our findings on the MVA-MERS-S vaccine may be of relevance for coronavirus 2019 (COVID-19) vaccination strategies.
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Affiliation(s)
- Leonie M Weskamm
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany.
| | - Anahita Fathi
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany; First Department of Medicine, Division of Infectious Diseases, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Matthijs P Raadsen
- Department of Virology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Anna Z Mykytyn
- Department of Virology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Till Koch
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany; First Department of Medicine, Division of Infectious Diseases, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Spohn
- Research Institute Children's Cancer Centre Hamburg, Hamburg, Germany; Department of Pediatric Hematology and Oncology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Bioinformatics Core Unit, Hamburg University Medical Centre, Hamburg, Germany
| | - Monika Friedrich
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany
| | - Bart L Haagmans
- Department of Virology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Stephan Becker
- German Centre for Infection Research, Gießen-Marburg-Langen, Germany; Institute for Virology, Philipps University Marburg, Marburg, Germany
| | - Gerd Sutter
- German Centre for Infection Research, München, Germany; Division of Virology, Institute for Infectious Diseases and Zoonoses, Department of Veterinary Sciences, LMU Munich, Munich, Germany
| | - Christine Dahlke
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany.
| | - Marylyn M Addo
- Institute for Infection Research and Vaccine Development (IIRVD), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany; German Centre for Infection Research, Hamburg-Lübeck-Borstel-Riems, Germany; First Department of Medicine, Division of Infectious Diseases, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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Chen X, Zhu Y, Li Q, Lu G, Li C, Jin R, Li L, Xu B, Gao L, Yin J, Xie Z. Genetic characteristics of human coronavirus HKU1 in mainland China during 2018. Arch Virol 2022; 167:2173-2180. [PMID: 35840864 PMCID: PMC9287133 DOI: 10.1007/s00705-022-05541-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/04/2022] [Indexed: 11/02/2022]
Abstract
Human coronavirus HKU1 (HCoV-HKU1) is a pathogen that causes acute respiratory tract infections in children and circulates worldwide. To investigate the molecular characteristics and genetic diversity of HCoV-HKU1 in China, a molecular epidemiological analysis based on complete genome sequences was performed. A total of 68 endemic-HCoV-positive samples were identified from 1358 enrolled patients during 2018, including four HCoV-229E, nine HCoV-OC43, 24 HCoV-NL63, and 31 HCoV-HKU1. The detection rate of endemic HCoVs was 5.01% during 2018, while for HCoV-HKU1, it was 2.28%. Eight complete genomic sequences of HCoV-HKU1 were obtained and compared to 41 reference genome sequences corresponding to genotypes A, B, and C, obtained from the GenBank databank. Of the eight HKU1 sequences, four belonged to genotype A and four belonged to genotype B. No genotype C strains were detected in this study. For genotype A, 18 variations in the S protein with respect to the reference sequence were present in more than 5% of the sequences, whereas for genotype B, this number was 25. Most of the amino acid changes occurred in the S1 subunit. No amino acid substitutions were found in the sites that are essential for interaction with neutralizing antibodies, while a 510T amino acid insertion was found in almost one third of genotype B sequences. About 82-83, 85-89, and 88-89 predicted N-glycosylation sites and 7-13, 6-8, and 9 predicted O-glycosylation sites were found among the sequences of genotype A, B, and C, respectively. Six conserved O-glycosylation sites were present in all of the genotype A sequences. Only genotype A and B strains were detected after 2005. The S protein exhibited relatively high diversity, with most of the amino acid changes occurring in the S1 subunit.
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Affiliation(s)
- Xiangpeng Chen
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Yun Zhu
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Qi Li
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Gen Lu
- Guangzhou Women and Children's Medical Center, Guangzhou, 510623, China
| | - Changchong Li
- The 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Rong Jin
- Guiyang Maternal and Child Health Hospital, Guiyang, 550003, China
| | - Lei Li
- Yinchuan Maternal and Child Health Care Hospital, Yinchuan, 750001, China
| | - Baoping Xu
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 10045, China
| | - Liwei Gao
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 10045, China
| | - Ju Yin
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 10045, China
| | - Zhengde Xie
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, Research Unit of Critical Infection in Children, Chinese Academy of Medical Sciences, 2019RU016, Laboratory of Infection and Virology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.
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12
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Hussen J, Shawaf T, Al Humam NA, Alhojaily SM, Al-sukruwah MA, Almathen F, Grandoni F. Flow Cytometric Analysis of Leukocyte Populations in the Lung Tissue of Dromedary Camels. Vet Sci 2022; 9:287. [PMID: 35737339 PMCID: PMC9231337 DOI: 10.3390/vetsci9060287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/23/2022] Open
Abstract
Respiratory tract infections are among the most common infections in dromedary camels, with a high impact on animal health, production, and welfare. Tissue-specific distribution of immune cells is one of the important factors that influence the nature and outcome of the immune response to pathogens. Several protocols have recently been described for the flow cytometric analysis of immune cells in the lung tissue of several species. However, no such protocol currently exists for dromedary camels. The aim of the present study was, therefore, to establish a flow cytometric protocol for the identification of immune cell populations in the camel lung tissue and the evaluation of some of their phenotypic and functional properties. Combined staining of camel lung leukocytes with monoclonal antibodies to the pan-leukocyte marker CD45 and the myeloid cell marker CD172a allowed the identification of myeloid cells (CD45+CD172a+) and lymphoid cells (CD45+CD172a−) in the lung of healthy camels. The cell adhesion molecules CD11a and CD18 were found in a higher abundance on myeloid cells compared to lymphoid cells. Based on their differential expression of the LPS receptor CD14, macrophages (CD172a+CD14high cells) were identified as the most abundant immune cell population in the camel lung tissue. In contrast to their dominance in camel peripheral blood, granulocytes (CD172a+CD14low) presented only a minor population in the lung tissue. The higher frequency of γδ T cells in the lung tissue than in peripheral blood suggests a role for these cells in the pulmonary immune system. Flow cytometric analysis of bacterial phagocytosis and ROS production upon bacterial stimulation revealed high antimicrobial activity of camel lung phagocytes, which was comparable with the antimicrobial activity of blood granulocytes. Comparative analysis of immune cell distribution between the cranial and caudal lobes of the camel lung revealed a higher frequency of granulocytes and a lower frequency of macrophages in the cranial compared to the caudal lung lobe. In addition, the higher frequency of cells expressing the M2 macrophage marker CD163 in the caudal lung tissue, with a slightly higher fraction of MHCII-positive cells (M1 phenotype) in the cranial lung tissue, may suggest the distribution of different macrophage subtypes in the different lobes of the camel lung. Such differences between lung lobes could influence the effectiveness of the immune response to infection or vaccination with respiratory pathogens. Collectively, the present study identified some similarities and differences between camels and other farm animals regarding the distribution of the main immune cell populations in their lungs. Further studies are required for comprehensive immunophenotyping of the cellular pulmonary immune system in camels.
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Abstract
Species differences in the structure and function of the immune system of laboratory animals are known to exist and have been reviewed extensively. However, the number and diversity of wild and exotic species, along with their associated viruses, that come into contact with humans has increased worldwide sometimes with lethal consequences. Far less is known about the immunobiology of these exotic and wild species. Data suggest that species differences of the mechanisms of inflammation, innate immunity and adaptive immunity are all involved in the establishment and maintenance of viral infections across reservoir hosts. The current review attempts to collect relevant data concerning the basics of innate and adaptive immune functions of exotic and wild species followed by identification of those differences that may play a role in the maintenance of viral infections in reservoir hosts.
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Affiliation(s)
- Patrick J Haley
- Haley Tox/Path Consulting LLC, 104 Cypress Springs Way, 78633, Georgetown Texas, United States
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14
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Semenova Y, Trenina V, Pivina L, Glushkova N, Zhunussov Y, Ospanov E, Bjørklund G. The lessons of COVID-19, SARS, and MERS: Implications for preventive strategies. International Journal of Healthcare Management 2022. [DOI: 10.1080/20479700.2022.2051126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yuliya Semenova
- Department of Neurology, Ophthalmology and Otolaryngology, Semey Medical University, Semey, Kazakhstan
- CONEM Kazakhstan Environmental Health and Safety Research Group, Semey Medical University, Semey, Kazakhstan
| | - Varvara Trenina
- Department of Neurology, Ophthalmology and Otolaryngology, Semey Medical University, Semey, Kazakhstan
| | - Lyudmila Pivina
- CONEM Kazakhstan Environmental Health and Safety Research Group, Semey Medical University, Semey, Kazakhstan
- Department of Emergency Medicine, Semey Medical University, Semey, Kazakhstan
| | - Natalya Glushkova
- Department of Epidemiology, Biostatistics & Evidence Based Medicine, Al-Farabi Kazakh National University, Almaty, Kazakhstan
| | | | - Erlan Ospanov
- Department of Neurology, Ophthalmology and Otolaryngology, Semey Medical University, Semey, Kazakhstan
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway
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Te N, Ciurkiewicz M, van den Brand JMA, Rodon J, Haverkamp AK, Vergara-Alert J, Bensaid A, Haagmans BL, Baumgartner W, Segalés J. Middle East respiratory syndrome coronavirus infection in camelids. Vet Pathol 2022; 59:546-555. [PMID: 35001773 DOI: 10.1177/03009858211069120] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) is the cause of a severe respiratory disease with a high case fatality rate in humans. Since its emergence in mid-2012, 2578 laboratory-confirmed cases in 27 countries have been reported by the World Health Organization, leading to 888 known deaths due to the disease and related complications. Dromedary camels are considered the major reservoir host for this virus leading to zoonotic infection in humans. Dromedary camels, llamas, and alpacas are susceptible to MERS-CoV, developing a mild-to-moderate upper respiratory tract infection characterized by epithelial hyperplasia as well as infiltration of neutrophils, lymphocytes, and some macrophages within epithelium, lamina propria, in association with abundant viral antigen. The very mild lesions in the lower respiratory tract of these camelids correlate with absence of overt illness following MERS-CoV infection. Unfortunately, there is no approved antiviral treatment or vaccine for MERS-CoV infection in humans. Thus, there is an urgent need to develop intervention strategies in camelids, such as vaccination, to minimize virus spillover to humans. Therefore, the development of camelid models of MERS-CoV infection is key not only to assess vaccine prototypes but also to understand the biologic mechanisms by which the infection can be naturally controlled in these reservoir species. This review summarizes information on virus-induced pathological changes, pathogenesis, viral epidemiology, and control strategies in camelids, as the intermediate hosts and primary source of MERS-CoV infection in humans.
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Affiliation(s)
- Nigeer Te
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | | | - Jordi Rodon
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | - Júlia Vergara-Alert
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Albert Bensaid
- IRTA, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Bart L Haagmans
- Department of Viroscience, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Joaquim Segalés
- UAB, Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, Bellaterra, Spain.,Departament de Sanitat i Anatomia Animals, Facultat de Veterinària, UAB, Bellaterra, Barcelona, Spain
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17
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Lado S, Futas J, Plasil M, Loney T, Weidinger P, Camp JV, Kolodziejek J, Kannan DO, Horin P, Nowotny N, Burger PA. Crimean-Congo Hemorrhagic Fever Virus Past Infections Are Associated with Two Innate Immune Response Candidate Genes in Dromedaries. Cells 2021; 11:8. [PMID: 35011568 PMCID: PMC8750074 DOI: 10.3390/cells11010008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/15/2021] [Indexed: 12/16/2022] Open
Abstract
Dromedaries are an important livestock, used as beasts of burden and for meat and milk production. However, they can act as an intermediate source or vector for transmitting zoonotic viruses to humans, such as the Middle East respiratory syndrome coronavirus (MERS-CoV) or Crimean-Congo hemorrhagic fever virus (CCHFV). After several outbreaks of CCHFV in the Arabian Peninsula, recent studies have demonstrated that CCHFV is endemic in dromedaries and camel ticks in the United Arab Emirates (UAE). There is no apparent disease in dromedaries after the bite of infected ticks; in contrast, fever, myalgia, lymphadenopathy, and petechial hemorrhaging are common symptoms in humans, with a case fatality ratio of up to 40%. We used the in-solution hybridization capture of 100 annotated immune genes to genotype 121 dromedaries from the UAE tested for seropositivity to CCHFV. Through univariate linear regression analysis, we identified two candidate genes belonging to the innate immune system: FCAR and CLEC2B. These genes have important functions in the host defense against viral infections and in stimulating natural killer cells, respectively. This study opens doors for future research into immune defense mechanisms in an enzootic host against an important zoonotic disease.
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Affiliation(s)
- Sara Lado
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, 1160 Vienna, Austria;
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Jan Futas
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (J.F.); (M.P.); (P.H.)
- RG Animal Immunogenomics, CEITEC VETUNI Brno, 61242 Brno, Czech Republic
| | - Martin Plasil
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (J.F.); (M.P.); (P.H.)
- RG Animal Immunogenomics, CEITEC VETUNI Brno, 61242 Brno, Czech Republic
| | - Tom Loney
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai 505055, United Arab Emirates; (T.L.); (N.N.)
| | - Pia Weidinger
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | - Jeremy V. Camp
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
- Center for Virology, Medical University of Vienna, 1090 Vienna, Austria
| | - Jolanta Kolodziejek
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | | | - Petr Horin
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (J.F.); (M.P.); (P.H.)
- RG Animal Immunogenomics, CEITEC VETUNI Brno, 61242 Brno, Czech Republic
| | - Norbert Nowotny
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai 505055, United Arab Emirates; (T.L.); (N.N.)
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | - Pamela A. Burger
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, 1160 Vienna, Austria;
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Ebrahim SH, Maher AD, Kanagasabai U, Alfaraj SH, Alzahrani NA, Alqahtani SA, Assiri AM, Memish ZA. MERS-CoV Confirmation among 6,873 suspected persons and relevant Epidemiologic and Clinical Features, Saudi Arabia - 2014 to 2019. EClinicalMedicine 2021; 41:101191. [PMID: 34805807 PMCID: PMC8590843 DOI: 10.1016/j.eclinm.2021.101191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/17/2021] [Accepted: 10/19/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Of the three lethal coronaviruses, in addition to the ongoing pandemic-causing SARS-CoV 2, Middle East Respiratory Syndrome Coronavirus (MERS-CoV) remains in circulation. Information on MERS-CoV has relied on small sample of patients. We updated the epidemiology, laboratory and clinical characteristics, and survival patterns of MERS-CoV retrospectively with the largest sample of followed patients. METHODS We conducted a retrospective review of line-listed records of non-random, continuously admitted patients who were suspected (6,873) or confirmed with MERS-CoV (501) admitted to one of the four MERS-CoV referral hospitals in Saudi Arabia, 2014-2019. FINDINGS Of the 6,873 MERS-CoV suspected persons, the majority were male (56%) and Saudi nationals (83%) and 95% had no known history that increased their risk of exposure to MERS-CoV patients or vectors (95%). More confirmed cases reported history that increased their risk of MERS-CoV infection (41%). Among the suspected, MERS-CoV confirmation (7.4% overall) was independently associated with being male, known transmission link to MERS-CoV patients or vectors, fever, symptoms for 7 days, admission through intensive care unit, and diabetes. Among persons with confirmed MERS-CoV, single symptoms were reported by 20%, 3-symptom combinations (fever, cough and dyspnea) reported by 21% and 2-symptom combinations (fever, cough) reported by 16%. Of the two-thirds (62%) of MERS-CoV confirmed patients who presented with co-morbidity, 32% had 2-"comorbidities (diabetes, hypertension). More than half of the MERS-CoV patents showed abnormal chest X-ray, elevated aspartate aminotransferase, and creatinine kinase. About a quarter of MERS-CoV patients had positive cultures on blood, urine, or respiratory secretions. During an average hospital stay of 18 days (range 11 to 30), 64% developed complications involving liver, lungs, or kidneys. Ventilation requirement (29% of MERS-CoV cases) was independently associated with abnormal chest X-ray, viremia (Ct value <30), elevated creatinine, and prothrombin time. Death (21% overall) was independently associated with older age, dyspnea and abnormal chest X-ray on admission, and low hemoglobulin levels. INTERPRETATIONS With two-thirds of the symptomatic persons developing multiorgan complications MERS-CoV remains the coronavirus with the highest severity (29%) and case fatality rate (21%) among the three lethal coronaviruses. Metabolic abnormalities appear to be an independent risk factor for sustained MERS-CoV transmission. The poorly understood transmission dynamics and non-specific clinical and laboratory features call for high index of suspicion among respiratory disease experts to help early detection of outbreaks. We reiterate the need for case control studies on transmission. FUNDING No special funding to declare.
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Affiliation(s)
- Shahul H. Ebrahim
- Adjunct Professor, University of Sciences, Technique and Technology, Bamako
| | - Andrew D. Maher
- Institute for Global Health Sciences, University of California San Francisco, USA
| | | | - Sarah H. Alfaraj
- Corona Center, Prince Mohammed Bin Abdulaziz Hospital, Ministry of Health, Riyadh, Saudi Arabia
| | - Nojom A. Alzahrani
- Corona Center, Prince Mohammed Bin Abdulaziz Hospital, Ministry of Health, Riyadh, Saudi Arabia
| | - Saleh A. Alqahtani
- Department of Medicine, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia & Division of Gastroenterology and Hepatology, Johns Hopkins University, Baltimore, MD, USA
| | - Abdullah M. Assiri
- Infection Prevention and Control, Preventive Health, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
| | - Ziad A. Memish
- Research & Innovation Center, King Saud Medical City, Ministry of Health and College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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Chan OSK, Bradley KCF, Grioni A, Lau SKP, Li WT, Magouras I, Naing T, Padula A, To EMW, Tun HM, Tutt C, Woo PCY, Bloch R, Mauroo NF. Veterinary Experiences can Inform One Health Strategies for Animal Coronaviruses. Ecohealth 2021; 18:301-314. [PMID: 34542794 PMCID: PMC8450722 DOI: 10.1007/s10393-021-01545-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 05/24/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Olivia S K Chan
- LKS Faculty of Medicine, School of Public Health, Patrick Manson Building, The University of Hong Kong, Pokfulam, Hong Kong.
| | - Katriona C F Bradley
- Tai Wai Small Animal and Exotic Hospital, G/F, Lap Wo Building, 69-75 Chik Shun St, Tai Wai, NT, Hong Kong
| | - Alessandro Grioni
- Fauna Conservation Department, Kadoorie Farm and Botanic Garden, Lam Kam Road, Tai Po, NT, Hong Kong
| | - Susanna K P Lau
- Department of Microbiology, The University of Hong Kong, Room 26, 19/F, Block T, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, Hong Kong
| | - Wen-Ta Li
- Department of Pathology, Pangolin International Biomedical Consultant Ltd., Keelung, Taiwan
| | - Ioannis Magouras
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong
| | - Tint Naing
- Soares Avenue Paws and Claws Clinic, G/F No 29 - 33 Soares Avenue, Kowloon, Hong Kong
| | - Andrew Padula
- Australian Venom Research Unit, Department of Pharmacology, Faculty of Medicine, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Esther M W To
- Agriculture, Fisheries and Conservation Department, The Government of Hong Kong Special Administrative Region, Room 509, Cheung Sha Wan Government Offices, 303 Cheung Sha Wan Road, Sham Shui Po, Kowloon, Hong Kong
| | - Hein Min Tun
- LKS Faculty of Medicine, School of Public Health, Patrick Manson Building, The University of Hong Kong, Pokfulam, Hong Kong
| | - Cedric Tutt
- Cape Animal Dentistry Service, 78 Rosmead Avenue, Kenilworth, Cape Town, 7708, South Africa
| | - Patrick C Y Woo
- Department of Microbiology, The University of Hong Kong, Room 26, 19/F, Block T, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, Hong Kong
| | - Rebecca Bloch
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nathalie F Mauroo
- Hong Kong Wildlife Health Foundation, GPO Box 12585, Hong Kong, Hong Kong
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20
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Berber E, Sumbria D, Çanakoğlu N. Meta-analysis and comprehensive study of coronavirus outbreaks: SARS, MERS and COVID-19. J Infect Public Health 2021; 14:1051-1064. [PMID: 34174535 PMCID: PMC8214867 DOI: 10.1016/j.jiph.2021.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 05/31/2021] [Accepted: 06/10/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Zoonotic coronaviruses have caused several endemic and pandemic situations around the world. SARS caused the first epidemic alert at the beginning of this century, followed by MERS. COVID-19 appeared to be highly contagious, with human-to-human transmission by aerosol droplets, and reached nearly all countries around the world. A plethora of studies were performed, with reports being published within a short period of time by scientists and medical physicians. It has been difficult to find the relevant data to create an overview of the situation according to studies from accumulated findings and reports. In the present study we aimed to perform a comprehensive study in the context of the case fatality ratios (CFRs) of three major human Coronavirus outbreaks which occurred during the first twenty years of 21st century. METHODS In this study, we performed meta-analyses on SARS, MERS and COVID-19 outbreak events from publicly available records. Study analyses were performed with the help of highly reputable scientific databases such as PubMed, WOS and Scopus to evaluate and present current knowledge on zoonotic coronavirus outbreaks, starting from 2000 to the end of 2020. RESULTS A total of 250,194 research studies and records were identified with specific keywords and synonyms for the three viruses in order to cover all publications. In the end, 41 records were selected and included after applying several exclusion and inclusion criteria on identified datasets. SARS was found to have a nearly 11% case fatality ratio (CFR), which means the estimated number of deaths as a proportion of confirmed positive cases; Taiwan was the country most affected by the SARS outbreak based on the CFR analysis. MERS had CFRs of 35.8 and 26 in Saudi Arabia during the 2012 and 2015 outbreaks, respectively. COVID-19 resulted in a 2.2 CFR globally, and the USA reported the highest mortality ratio in the world in the end of first year of COVID-19 pandemic. CONCLUSION Some members of the Coronaviridae family can cause highly contagious and devastating infections among humans. Within the last two decades, the whole world has witnessed several deadly emerging infectious diseases, which are most commonly zoonotic in nature. We conclude that pre-existing immunity during the early stages of a pandemic might be important, but case control and management strategies should be improved to decrease CFRs. Finally, we have addressed several concerns in relation to outbreak events in this study.
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Affiliation(s)
- Engin Berber
- University of Tennessee, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, Knoxville, TN, USA; Erciyes University, College of Veterinary Medicine, Department of Virology, Kayseri, Turkey.
| | - Deepak Sumbria
- University of Tennessee, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, Knoxville, TN, USA; Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Department of Silviculture and Agroforestry, College of Forestry, Solan, Himachal Pradesh, India
| | - Nurettin Çanakoğlu
- Muğla Sıtkı Koçman University, Milas Faculty of Veterinary Science, Department of Virology, Muğla, Turkey
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21
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Alnuqaydan AM, Almutary AG, Sukamaran A, Yang BTW, Lee XT, Lim WX, Ng YM, Ibrahim R, Darmarajan T, Nanjappan S, Chellian J, Candasamy M, Madheswaran T, Sharma A, Dureja H, Prasher P, Verma N, Kumar D, Palaniveloo K, Bisht D, Gupta G, Madan JR, Singh SK, Jha NK, Dua K, Chellappan DK. Middle East Respiratory Syndrome (MERS) Virus-Pathophysiological Axis and the Current Treatment Strategies. AAPS PharmSciTech 2021; 22:173. [PMID: 34105037 PMCID: PMC8186825 DOI: 10.1208/s12249-021-02062-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/19/2021] [Indexed: 02/07/2023] Open
Abstract
Middle East respiratory syndrome (MERS) is a lethal respiratory disease with its first case reported back in 2012 (Jeddah, Saudi Arabia). It is a novel, single-stranded, positive-sense RNA beta coronavirus (MERS-CoV) that was isolated from a patient who died from a severe respiratory illness. Later, it was found that this patient was infected with MERS. MERS is endemic to countries in the Middle East regions, such as Saudi Arabia, Jordan, Qatar, Oman, Kuwait and the United Arab Emirates. It has been reported that the MERS virus originated from bats and dromedary camels, the natural hosts of MERS-CoV. The transmission of the virus to humans has been thought to be either direct or indirect. Few camel-to-human transmissions were reported earlier. However, the mode of transmission of how the virus affects humans remains unanswered. Moreover, outbreaks in either family-based or hospital-based settings were observed with high mortality rates, especially in individuals who did not receive proper management or those with underlying comorbidities, such as diabetes and renal failure. Since then, there have been numerous reports hypothesising complications in fatal cases of MERS. Over the years, various diagnostic methods, treatment strategies and preventive measures have been strategised in containing the MERS infection. Evidence from multiple sources implicated that no treatment options and vaccines have been developed in specific, for the direct management of MERS-CoV infection. Nevertheless, there are supportive measures outlined in response to symptom-related management. Health authorities should stress more on infection and prevention control measures, to ensure that MERS remains as a low-level threat to public health.
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Affiliation(s)
- Abdullah M Alnuqaydan
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Abdulmajeed G Almutary
- Department of Medical Biotechnology, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Arulmalar Sukamaran
- School of Pharmacy, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Brian Tay Wei Yang
- School of Pharmacy, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Xiao Ting Lee
- School of Pharmacy, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Wei Xuan Lim
- School of Pharmacy, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Yee Min Ng
- School of Pharmacy, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Rania Ibrahim
- School of Health Sciences, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Thiviya Darmarajan
- School of Health Sciences, International Medical University, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Satheeshkumar Nanjappan
- Department of Natural Products, National Institute of Pharmaceutical Education & Research (NIPER-Kolkata), Chunilal Bhawan, Maniktala, Kolkata, West Bengal, 700054, India
| | - Jestin Chellian
- Department of Life Sciences, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Mayuren Candasamy
- Department of Life Sciences, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Thiagarajan Madheswaran
- Department of Pharmaceutical Technology, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Ankur Sharma
- Department of Life Science, School of Basic Science and Research, Sharda University, Knowledge Park, Uttar Pradesh, 201310, India
| | - Harish Dureja
- Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun, 248007, India
| | - Nitin Verma
- Chitkara University School of Pharmacy, Chitkara University, Atal Shiksha Kunj, Atal Nagar, Himachal Pradesh, 174103, India
| | - Deepak Kumar
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Kishneth Palaniveloo
- Institute of Ocean and Earth Sciences, Institute for Advanced Studies Building, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Dheeraj Bisht
- Department of Pharmaceutical Sciences Bhimtal, Kumaun University Nainital, Uttarakhand, 263136, India
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, India
| | - Jyotsana R Madan
- Department of Pharmaceutics, Smt. Kashibai Navale College of Pharmacy, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T Road, Phagwara, Punjab, India
| | - Niraj Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Greater Noida, Uttar Pradesh, 201310, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
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22
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Lado S, Elbers JP, Plasil M, Loney T, Weidinger P, Camp JV, Kolodziejek J, Futas J, Kannan DA, Orozco-terWengel P, Horin P, Nowotny N, Burger PA. Innate and Adaptive Immune Genes Associated with MERS-CoV Infection in Dromedaries. Cells 2021; 10:1291. [PMID: 34070971 PMCID: PMC8224694 DOI: 10.3390/cells10061291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 12/18/2022] Open
Abstract
The recent SARS-CoV-2 pandemic has refocused attention to the betacoronaviruses, only eight years after the emergence of another zoonotic betacoronavirus, the Middle East respiratory syndrome coronavirus (MERS-CoV). While the wild source of SARS-CoV-2 may be disputed, for MERS-CoV, dromedaries are considered as source of zoonotic human infections. Testing 100 immune-response genes in 121 dromedaries from United Arab Emirates (UAE) for potential association with present MERS-CoV infection, we identified candidate genes with important functions in the adaptive, MHC-class I (HLA-A-24-like) and II (HLA-DPB1-like), and innate immune response (PTPN4, MAGOHB), and in cilia coating the respiratory tract (DNAH7). Some of these genes previously have been associated with viral replication in SARS-CoV-1/-2 in humans, others have an important role in the movement of bronchial cilia. These results suggest similar host genetic pathways associated with these betacoronaviruses, although further work is required to better understand the MERS-CoV disease dynamics in both dromedaries and humans.
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Affiliation(s)
- Sara Lado
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.L.); (J.P.E.)
| | - Jean P. Elbers
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.L.); (J.P.E.)
| | - Martin Plasil
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (M.P.); (J.F.); (P.H.)
- RG Animal Immunogenomics, Ceitec Vetuni, 61242 Brno, Czech Republic
| | - Tom Loney
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai 505055, United Arab Emirates; (T.L.); (N.N.)
| | - Pia Weidinger
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | - Jeremy V. Camp
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
- Center for Virology, Medical University of Vienna, 1090 Vienna, Austria
| | - Jolanta Kolodziejek
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | - Jan Futas
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (M.P.); (J.F.); (P.H.)
- RG Animal Immunogenomics, Ceitec Vetuni, 61242 Brno, Czech Republic
| | | | - Pablo Orozco-terWengel
- The Sir Martin Evans Building, Cardiff School of Biosciences, Cardiff University, Museum Ave, Cardiff CF10 3AX, UK;
| | - Petr Horin
- Department of Animal Genetics, University of Veterinary Sciences Brno, 61242 Brno, Czech Republic; (M.P.); (J.F.); (P.H.)
- RG Animal Immunogenomics, Ceitec Vetuni, 61242 Brno, Czech Republic
| | - Norbert Nowotny
- College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai 505055, United Arab Emirates; (T.L.); (N.N.)
- Viral Zoonoses, Emerging and Vector-Borne Infections Group, Institute of Virology, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (P.W.); (J.V.C.); (J.K.)
| | - Pamela A. Burger
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine Vienna, 1210 Vienna, Austria; (S.L.); (J.P.E.)
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23
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Costanzo M, De Giglio MAR, Roviello GN. Anti-Coronavirus Vaccines: Past Investigations on SARS-CoV-1 and MERS-CoV, the Approved Vaccines from BioNTech/Pfizer, Moderna, Oxford/AstraZeneca and others under Development Against SARS-CoV-2 Infection. Curr Med Chem 2021; 29:4-18. [PMID: 34355678 DOI: 10.2174/0929867328666210521164809] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/07/2021] [Accepted: 04/10/2021] [Indexed: 11/22/2022]
Abstract
The aim of this review article is to summarize the knowledge available to date on prophylaxis achievements to fight against Coronavirus. This work will give an overview of what is reported in the most recent literature on vaccines (under investigation or already developed like BNT162b2, mRNA-1273, and ChAdOx1-S) effective against the most pathogenic Coronaviruses (SARS-CoV-1, MERS-CoV-1, and SARS-CoV-2), with of course particular attention paid to those under development or already in use to combat the current COVID-19 (COronaVIrus Disease 19) pandemic. Our main objective is to make a contribution to the comprehension, additionally at a molecular level, of what is currently ready for anti-SARS-CoV-2 prophylactic intervention, as well as to provide the reader with an overall picture of the most innovative approaches for the development of vaccines that could be of general utility in the fight against the most pathogenic Coronaviruses.
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Affiliation(s)
- Michele Costanzo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples 'Federico II', Via S. Pansini 5, I-80131 Naples, Italy
| | | | - Giovanni N Roviello
- Istituto di Biostrutture e Bioimmagini IBB - CNR, Via Mezzocannone 16; I-80134 Naples, Italy
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24
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Jelinek HF, Mousa M, Alefishat E, Osman W, Spence I, Bu D, Feng SF, Byrd J, Magni PA, Sahibzada S, Tay GK, Alsafar HS. Evolution, Ecology, and Zoonotic Transmission of Betacoronaviruses: A Review. Front Vet Sci 2021; 8:644414. [PMID: 34095271 PMCID: PMC8173069 DOI: 10.3389/fvets.2021.644414] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 03/25/2021] [Indexed: 12/18/2022] Open
Abstract
Coronavirus infections have been a part of the animal kingdom for millennia. The difference emerging in the twenty-first century is that a greater number of novel coronaviruses are being discovered primarily due to more advanced technology and that a greater number can be transmitted to humans, either directly or via an intermediate host. This has a range of effects from annual infections that are mild to full-blown pandemics. This review compares the zoonotic potential and relationship between MERS, SARS-CoV, and SARS-CoV-2. The role of bats as possible host species and possible intermediate hosts including pangolins, civets, mink, birds, and other mammals are discussed with reference to mutations of the viral genome affecting zoonosis. Ecological, social, cultural, and environmental factors that may play a role in zoonotic transmission are considered with reference to SARS-CoV, MERS, and SARS-CoV-2 and possible future zoonotic events.
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Affiliation(s)
- Herbert F. Jelinek
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Biomedical Engineering, College of Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center of Heath Engineering Innovation, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Mira Mousa
- Nuffield Department of Women's and Reproduction Health, Oxford University, Oxford, United Kingdom
| | - Eman Alefishat
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Pharmacology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | - Wael Osman
- Department of Chemistry, College of Arts and Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ian Spence
- Discipline of Pharmacology, University of Sydney, Sydney, NSW, Australia
| | - Dengpan Bu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, China
| | - Samuel F. Feng
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Mathematics, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Jason Byrd
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Paola A. Magni
- Discipline of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA, Australia
- Murdoch University Singapore, King's Centre, Singapore, Singapore
| | - Shafi Sahibzada
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, WA, Australia
| | - Guan K. Tay
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Division of Psychiatry, Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, WA, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Habiba S. Alsafar
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Biomedical Engineering, College of Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Genetics and Molecular Biology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
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25
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Jevšnik Virant M, Černe D, Petrovec M, Paller T, Toplak I. Genetic Characterisation and Comparison of Three Human Coronaviruses (HKU1, OC43, 229E) from Patients and Bovine Coronavirus (BCoV) from Cattle with Respiratory Disease in Slovenia. Viruses 2021; 13:v13040676. [PMID: 33920821 PMCID: PMC8071153 DOI: 10.3390/v13040676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 11/16/2022] Open
Abstract
Coronaviruses (CoV) are widely distributed pathogens of human and animals and can cause mild or severe respiratory and gastrointestinal disease. Antigenic and genetic similarity of some CoVs within the Betacoronavirus genus is evident. Therefore, for the first time in Slovenia, we investigated the genetic diversity of partial 390-nucleotides of RNA-dependent-RNA polymerase gene (RdRp) for 66 human (HCoV) and 24 bovine CoV (BCoV) positive samples, collected between 2010 and 2016 from human patients and cattle with respiratory disease. The characterized CoV strains belong to four different clusters, in three separate human clusters HCoV-HKU1 (n = 34), HCoV-OC43 (n = 31) and HCoV 229E (n = 1) and bovine grouping only as BCoVs (n = 24). BCoVs from cattle and HCoV-OC43 were genetically the most closely related and share 96.4-97.1% nucleotide and 96.9-98.5% amino acid identity.
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Affiliation(s)
- Monika Jevšnik Virant
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia; (M.J.V.); (M.P.)
| | - Danijela Černe
- Virology Unit, Institute of Microbiology and Parasitology, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1115 Ljubljana, Slovenia;
| | - Miroslav Petrovec
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Zaloška 4, 1000 Ljubljana, Slovenia; (M.J.V.); (M.P.)
| | - Tomislav Paller
- National Veterinary Institute, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1115 Ljubljana, Slovenia;
| | - Ivan Toplak
- Virology Unit, Institute of Microbiology and Parasitology, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1115 Ljubljana, Slovenia;
- Correspondence:
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Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of COVID-19, a disease that as of July 10, 2020, has infected >12 million people and killed >500,000. COVID-19 infection leads to acute respiratory distress syndrome in a subset of patients and is a primary driver of acute morbidity in infected persons. However, it is becoming increasingly clear that SARS-CoV-2 infection drives dysfunction and pathology outside the lungs, including reports of renal, cardiac, and neurological complications. In this study, we summarize the known incidence and evidence of neurological complications associated with SARS-CoV-2 infection and other pathogenic coronaviruses. These studies describe a poorly understood spectrum of COVID-19 central nervous system symptoms, ranging from common and subclinical issues such as anosmia and headache to more concerning reports of stroke and encephalopathy. We discuss potential mechanisms of pathogenesis, including a discussion of how the understanding of neurological complications known to occur in HIV-1 patients may provide insight into SARS-CoV-2-associated neurological manifestations. Specifically, three hypotheses are discussed that are informed by decades of knowledge about HIV pathogenesis in the brain, which include a potential direct viral effect, an indirect viral effect, and/or a neuroimmune axis effect. Individually or in combination these potential effects may contribute to COVID-19 neurological complications.
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Affiliation(s)
- Lena Al-Harthi
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, Illinois, USA
| | - Edward Campbell
- Department of Microbiology and Immunology, Loyola University, Chicago, Illinois, USA
| | - Julie A. Schneider
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
| | - David A. Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois, USA
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27
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Vicidomini C, Roviello V, Roviello GN. Molecular Basis of the Therapeutical Potential of Clove ( Syzygium aromaticum L.) and Clues to Its Anti-COVID-19 Utility. Molecules 2021; 26:1880. [PMID: 33810416 DOI: 10.3390/molecules26071880] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/18/2022] Open
Abstract
The current COronaVIrus Disease 19 (COVID-19) pandemic caused by SARS-CoV-2 infection is enormously affecting the worldwide health and economy. In the wait for an effective global immunization, the development of a specific therapeutic protocol to treat COVID-19 patients is clearly necessary as a short-term solution of the problem. Drug repurposing and herbal medicine represent two of the most explored strategies for an anti-COVID-19 drug discovery. Clove (Syzygium aromaticum L.) is a well-known culinary spice that has been used for centuries in folk medicine in many disorders. Interestingly, traditional medicines have used clove since ancient times to treat respiratory ailments, whilst clove ingredients show antiviral and anti-inflammatory properties. Other interesting features are the clove antithrombotic, immunostimulatory, and antibacterial effects. Thus, in this review, we discuss the potential role of clove in the frame of anti-COVID-19 therapy, focusing on the antiviral, anti-inflammatory, and antithrombotic effects of clove and its molecular constituents described in the scientific literature.
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Abstract
ABSTRACT Camels are ungulates of the genus Camelus and have been used for centuries in parts of Asia and Africa for transport and sustenance. Handling of camels is not without its dangers, and 4 cases from South Australia are reported with a review of lethal camel-related issues. Case 1 is a 56-year-old man who died of multiple blunt force injuries after he had attempted to move a 7-year-old female dromedary (Camelus dromedarius). Case 2 is a 65-year-old woman who was crushed by 1 or more camels that she had been training. Case 3 is a 1-year-old girl who died of blunt craniocerebral trauma after the car in which she was traveling rolled when the driver swerved to avoid a herd of camels that had strayed onto the road. Case 4 is a 66-year-old woman who died of ischemic and hypertensive cardiac disease exacerbated by physical activity while rounding up camels. Deaths associated with camels involve kicking, stomping, kneeling or sitting on a victim, or biting and shaking and throwing. Lethal mechanisms include hemorrhage from vascular injuries and internal organ disruption, crush asphyxia, and blunt craniospinal injuries. Death may also follow falls from camels or vehicle collisions. Camels also carry a wide range of zoonotic diseases, the most significant of which is Middle Eastern respiratory syndrome. Handling of camels may also exacerbate underlying organic illnesses such as cardiac disease. Those working with camels should be aware that the size, strength, and temperament of these animals may make them dangerous and that they also carry potentially lethal zoonotic diseases.
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29
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Khamassi Khbou M, Daaloul Jedidi M, Bouaicha Zaafouri F, Benzarti M. Coronaviruses in farm animals: Epidemiology and public health implications. Vet Med Sci 2021; 7:322-347. [PMID: 32976707 PMCID: PMC7537542 DOI: 10.1002/vms3.359] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 12/12/2022] Open
Abstract
Coronaviruses (CoVs) are documented in a wide range of animal species, including terrestrial and aquatic, domestic and wild. The geographic distribution of animal CoVs is worldwide and prevalences were reported in several countries across the five continents. The viruses are known to cause mainly gastrointestinal and respiratory diseases with different severity levels. In certain cases, CoV infections are responsible of huge economic losses associated or not to highly public health impact. Despite being enveloped, CoVs are relatively resistant pathogens in the environment. Coronaviruses are characterized by a high mutation and recombination rate, which makes host jumping and cross-species transmission easy. In fact, increasing contact between different animal species fosters cross-species transmission, while agriculture intensification, animal trade and herd management are key drivers at the human-animal interface. If contacts with wild animals are still limited, humans have much more contact with farm animals, during breeding, transport, slaughter and food process, making CoVs a persistent threat to both humans and animals. A global network should be established for the surveillance and monitoring of animal CoVs.
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Affiliation(s)
- Médiha Khamassi Khbou
- Laboratory of Infectious Animal Diseases, Zoonoses, and Sanitary RegulationUniv. Manouba. Ecole Nationale de Médecine Vétérinaire de Sidi ThabetSidi ThabetTunisia
| | - Monia Daaloul Jedidi
- Laboratory of Microbiology and ImmunologyUniv. ManoubaEcole Nationale de Médecine Vétérinaire de Sidi ThabetSidi ThabetTunisia
| | - Faten Bouaicha Zaafouri
- Department of Livestock Semiology and MedicineUniv. ManoubaEcole Nationale de Médecine Vétérinaire de Sidi ThabetSidi ThabetTunisia
| | - M’hammed Benzarti
- Laboratory of Infectious Animal Diseases, Zoonoses, and Sanitary RegulationUniv. Manouba. Ecole Nationale de Médecine Vétérinaire de Sidi ThabetSidi ThabetTunisia
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30
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Khan S, Shaker B, Ahmad S, Abbasi SW, Arshad M, Haleem A, Ismail S, Zaib A, Sajjad W. Towards a novel peptide vaccine for Middle East respiratory syndrome coronavirus and its possible use against pandemic COVID-19. J Mol Liq 2021; 324:114706. [PMID: 33173250 PMCID: PMC7644433 DOI: 10.1016/j.molliq.2020.114706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/05/2020] [Accepted: 11/02/2020] [Indexed: 12/02/2022]
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) is an emerging health concern due to its high mortality rate of 35%. At present, no vaccine is available to protect against MERS-CoV infections. Therefore, an in silico search for potential antigenic epitopes in the non-redundant proteome of MERS-CoV was performed herein. First, a subtractive proteome-based approach was employed to look for the surface exposed and host non-homologous proteins. Following, immunoinformatics analysis was performed to predict antigenic B and T cell epitopes that were used in the design of a multi-epitopes peptide. Molecular docking study was carried out to predict vaccine construct affinity of binding to Toll-like receptor 3 (TLR3) and understand its binding conformation to extract ideas about its processing by the host immune system. We identified membrane protein, envelope small membrane protein, non-structural protein ORF3, non-structural protein ORF5, and spike glycoprotein as potential candidates for subunit vaccine designing. The designed multi-epitope peptide then linked to β-defensin adjuvant is showing high antigenicity. Further, the sequence of the designed vaccine construct is optimized for maximum expression in the Escherichia coli expression system. A rich pattern of hydrogen and hydrophobic interactions of the construct was observed with the TLR3 allowing stable binding of the construct at the docked site as predicted by the molecular dynamics simulation and MM-PBSA binding energies. We expect that the panel of subunit vaccine candidates and the designed vaccine construct could be highly effective in immunizing populations from infections caused by MERS-CoV and could possible applied on the current pandemic COVID-19.
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Affiliation(s)
- Salman Khan
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu 73000, PR China
| | - Bilal Shaker
- School of Integrative Engineering, Chung ANG University, Seoul, South Korea
| | - Sajjad Ahmad
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sumra Wajid Abbasi
- Department of Biological Sciences, National University of Medical Sciences, the Mall, Rawalpindi 46000, Pakistan
| | - Muhammad Arshad
- Department of Microbiology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Abdul Haleem
- Department of Microbiology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Saba Ismail
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Anita Zaib
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Wasim Sajjad
- Department of Biological Sciences, National University of Medical Sciences, the Mall, Rawalpindi 46000, Pakistan
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Borbone N, Piccialli G, Roviello GN, Oliviero G. Nucleoside Analogs and Nucleoside Precursors as Drugs in the Fight against SARS-CoV-2 and Other Coronaviruses. Molecules 2021; 26:986. [PMID: 33668428 PMCID: PMC7918729 DOI: 10.3390/molecules26040986] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 01/18/2023] Open
Abstract
Coronaviruses (CoVs) are positive-sense RNA enveloped viruses, members of the family Coronaviridae, that cause infections in a broad range of mammals including humans. Several CoV species lead to mild upper respiratory infections typically associated with common colds. However, three human CoV (HCoV) species: Severe Acute Respiratory Syndrome (SARS)-CoV-1, Middle East Respiratory Syndrome (MERS)-CoV, and SARS-CoV-2, are responsible for severe respiratory diseases at the origin of two recent epidemics (SARS and MERS), and of the current COronaVIrus Disease 19 (COVID-19), respectively. The easily transmissible SARS-CoV-2, emerging at the end of 2019 in China, spread rapidly worldwide, leading the World Health Organization (WHO) to declare COVID-19 a pandemic. While the world waits for mass vaccination, there is an urgent need for effective drugs as short-term weapons to combat the SARS-CoV-2 infection. In this context, the drug repurposing approach is a strategy able to guarantee positive results rapidly. In this regard, it is well known that several nucleoside-mimicking analogs and nucleoside precursors may inhibit the growth of viruses providing effective therapies for several viral diseases, including HCoV infections. Therefore, this review will focus on synthetic nucleosides and nucleoside precursors active against different HCoV species, paying great attention to SARS-CoV-2. This work covers progress made in anti-CoV therapy with nucleoside derivatives and provides insight into their main mechanisms of action.
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Affiliation(s)
- Nicola Borbone
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (N.B.); (G.P.)
| | - Gennaro Piccialli
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (N.B.); (G.P.)
| | | | - Giorgia Oliviero
- Department of Molecular Medicine and Medical Biotechnologies, University of Napoli Federico II, Via Sergio Pansini 5, 80131 Naples, Italy;
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32
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Affiliation(s)
- Peter Nagy
- Farm and Veterinary Department, Emirates Industry for Camel Milk and Products, Dubai, UAE
| | | | - Pamela Burger
- Department of Interdisciplinary Life Sciences, Research Institute of Wildlife Ecology, Vetmeduni Vienna, Vienna, Austria
| | - Judit Juhasz
- Farm and Veterinary Department, Emirates Industry for Camel Milk and Products, Dubai, UAE
| | - Bernard Faye
- UMR SELMET, CIRAD-ES, Campus International de Baillarguet, Montpellier, France.,Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, Kazakhstan
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Abstract
Camels are domesticated animals that are highly adapted to the extreme desert ecosystem with relatively higher resistance to a wide range of pathogens compared to many other species from the same geographical region. Recently, there has been increased interest in the field of camel immunology. As the progress in the analysis of camel immunoglobulins has previously been covered in many recent reviews, this review intends to summarize published findings related to camel cellular immunology with a focus on the phenotype and functionality of camel leukocyte subpopulations. The review also describes the impact of different physiological (age and pregnancy) and pathological (e.g. infection) conditions on camel immune cells. Despite the progress achieved in the field of camel immunology, there are gaps in our complete understanding of the camel immune system. Questions remain regarding innate recognition mechanisms, the functional characterization of antigen-presenting cells, and the characterization of camel NK and cytotoxic T cells.
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Affiliation(s)
- Jamal Hussen
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Hans-Joachim Schuberth
- Institute of Immunology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
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Alsharif KF, Alzahrani AB, Alharbi AO, Algregri TO, Almuafa BH, Alsulami MO, Alzahrani KJ, Almuqati MS, Abdel-Moneim AS. The prevalence of MERS-CoV among military personnel and their families: A single-center study. J Med Virol 2021; 93:2815-2819. [PMID: 33128396 DOI: 10.1002/jmv.26642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/09/2020] [Accepted: 10/26/2020] [Indexed: 11/09/2022]
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) is a Betacoronavirus that results in a severe fatal respiratory disease; however, it is also associated with mild inapparent infections. The western part of the Kingdom of Saudi Arabia (KSA) contains the holy places where millions of Muslims gathered from all over the world, all year round, with a high probability of mass disease transmission. The aim of this study was to estimate the prevalence of MERS-CoV among military personnel and their families during the period 2014-2019, in the western part of the KSA. A total of 35,203 sputum samples collected from patients with respiratory distress were screened for the presence of MERS-CoV using real-time reverse-transcription polymerase chain reaction in the examined patients. MERS-CoV infections were detected at a very low percentage in the examined patients. Only 42 of the examined subjects (0.12%) were found positive for MERS-CoV. Most infected cases (32/42) cases were detected in 2014, and the rest of the cases were reported in 2015-2019. The cases with fatal consequences (n = 20) were only detected in 2014. It was concluded that there is a very low prevalence of MERS-CoV infections among the military personnel and their families.
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Affiliation(s)
- Khalaf F Alsharif
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Al-Taif, Saudi Arabia
| | | | | | | | | | | | - Khalid J Alzahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Al-Taif, Saudi Arabia
| | | | - Ahmed S Abdel-Moneim
- Department of Microbiology, College of Medicine, Taif University, Al-Taif, Saudi Arabia
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Ceylan Z, Ocak E, Uçar Y, Karakus K, Cetinkaya T. An overview of food safety and COVID-19 infection. Environmental and Health Management of Novel Coronavirus Disease (COVID-19 ) 2021. [PMCID: PMC8237532 DOI: 10.1016/b978-0-323-85780-2.00004-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Avian influenzas, Ebola, Nipah, Middle East respiratory syndrome coronavirus (MERS-CoV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is an RNA virus covered by a lipid bilayer, are directly affecting people worldwide. On the other hand, in addition to the main spread source (human contact) of SARS-CoV-2, consumers have started to think about whether foods are dangerous in terms of SARS-CoV-2 spread. The consumption of wild animals as well as the possible contamination of SARS-CoV-2 in fresh and frozen foods have caused concern and increased awareness among consumers. A heating process >70°C is being suggested to eliminate viral contamination risk. Cutting tools, slicing machines, and food-contact surfaces including stainless steel, aluminum, or glass must be regularly sanitized. The sous vide cooking method, which is based on cooking under vacuum and with pH treatments in the range of 3 and 10, could be advised in this risky period for decreasing contamination risk in food. Also, recent studies have shown that nanotechnology applications such as nanoparticles could be used to combat the SARS-CoV-2 spread, which is 50–200 nm in size. Another suggested technique is cold plasma technology that could damage the protein structure of the virus. Besides these techniques, it is important to boost the immune system. In this regard, recent researches have revealed the importance of honey consumption (1 g/kg per person/day), intake of vitamins, minerals like selenium, and ω-3 fatty acids.
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Abstract
The risk of emergence and spread of novel human pathogens originating from an animal reservoir has increased in the past decades. However, the unpredictable nature of disease emergence makes surveillance and preparedness challenging. Knowledge of general risk factors for emergence and spread, combined with local level data is needed to develop a risk-based methodology for early detection. This involves the implementation of the One Health approach, integrating human, animal and environmental health sectors, as well as social sciences, bioinformatics and more. Recent technical advances, such as metagenomic sequencing, will aid the rapid detection of novel pathogens on the human-animal interface.
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Ngere I, Munyua P, Harcourt J, Hunsperger E, Thornburg N, Muturi M, Osoro E, Gachohi J, Bodha B, Okotu B, Oyugi J, Jaoko W, Mwatondo A, Njenga K, Widdowson MA. High MERS-CoV seropositivity associated with camel herd profile, husbandry practices and household socio-demographic characteristics in Northern Kenya. Epidemiol Infect 2020; 148:e292. [PMID: 33256863 DOI: 10.1017/S0950268820002939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Despite high exposure to Middle East respiratory syndrome coronavirus (MERS-CoV), the predictors for seropositivity in the context of husbandry practices for camels in Eastern Africa are not well understood. We conducted a cross-sectional survey to describe the camel herd profile and determine the factors associated with MERS-CoV seropositivity in Northern Kenya. We enrolled 29 camel-owning households and administered questionnaires to collect herd and household data. Serum samples collected from 493 randomly selected camels were tested for anti-MERS-CoV antibodies using a microneutralisation assay, and regression analysis used to correlate herd and household characteristics with camel seropositivity. Households reared camels (median = 23 camels and IQR 16–56), and at least one other livestock species in two distinct herds; a home herd kept near homesteads, and a range/fora herd that resided far from the homestead. The overall MERS-CoV IgG seropositivity was 76.3%, with no statistically significant difference between home and fora herds. Significant predictors for seropositivity (P ⩽ 0.05) included camels 6–10 years old (aOR 2.3, 95% CI 1.0–5.2), herds with ⩾25 camels (aOR 2.0, 95% CI 1.2–3.4) and camels from Gabra community (aOR 2.3, 95% CI 1.2–4.2). These results suggest high levels of virus transmission among camels, with potential for human infection.
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Devaux CA, Osman IO, Million M, Raoult D. Coxiella burnetii in Dromedary Camels ( Camelus dromedarius): A Possible Threat for Humans and Livestock in North Africa and the Near and Middle East? Front Vet Sci 2020; 7:558481. [PMID: 33251255 PMCID: PMC7674558 DOI: 10.3389/fvets.2020.558481] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/28/2020] [Indexed: 01/09/2023] Open
Abstract
The "One Health" concept recognizes that human health is connected to animal health and to the ecosystems. Coxiella burnetii-induced human Q fever is one of the most widespread neglected zoonosis. The main animal reservoirs responsible for C. burnetii transmission to humans are domesticated ruminants, primarily goats, sheep, and cattle. Although studies are still too sparse to draw definitive conclusions, the most recent C. burnetii serosurvey studies conducted in herds and farms in Africa, North Africa, Arabian Peninsula, and Asia highlighted that seroprevalence was strikingly higher in dromedary camels (Camelus dromedarius) than in other ruminants. The C. burnetii seroprevalence in camel herds can reach more than 60% in Egypt, Saudi Arabia, and Sudan, and 70 to 80% in Algeria and Chad, respectively. The highest seroprevalence was in female camels with a previous history of abortion. Moreover, C. burnetii infection was reported in ticks of the Hyalomma dromedarii and Hyalomma impeltatum species collected on camels. Even if dromedary camels represent <3% of the domesticated ruminants in the countries of the Mediterranean basin Southern coast, these animals play a major socioeconomic role for millions of people who live in the arid zones of Africa, Middle East, and Asia. In Chad and Somalia, camels account for about 7 and 21% of domesticated ruminants, respectively. To meet the growing consumers demand of camel meat and milk (>5 million tons/year of both raw and pasteurized milk according to the Food and Agriculture Organization) sustained by a rapid increase of population (growth rate: 2.26-3.76 per year in North Africa), dromedary camel breeding tends to increase from the Maghreb to the Arabic countries. Because of possible long-term persistence of C. burnetii in camel hump adipocytes, this pathogen could represent a threat for herds and breeding farms and ultimately for public health. Because this review highlights a hyperendemia of C. burnetii in dromedary camels, a proper screening of herds and breeding farms for C. burnetii is urgently needed in countries where camel breeding is on the rise. Moreover, the risk of C. burnetii transmission from camel to human should be further evaluated.
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Affiliation(s)
- Christian A. Devaux
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
- CNRS, Marseille, France
| | - Ikram Omar Osman
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
- Faculty of Sciences Ben-Ben-M'Sik, University Hassan II, Casablanca, Morocco
| | - Matthieu Million
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Didier Raoult
- Aix-Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
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Mummah RO, Hoff NA, Rimoin AW, Lloyd-Smith JO. Controlling emerging zoonoses at the animal-human interface. One Health Outlook 2020; 2:17. [PMID: 33073176 PMCID: PMC7550773 DOI: 10.1186/s42522-020-00024-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 07/09/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND For many emerging or re-emerging pathogens, cases in humans arise from a mixture of introductions (via zoonotic spillover from animal reservoirs or geographic spillover from endemic regions) and secondary human-to-human transmission. Interventions aiming to reduce incidence of these infections can be focused on preventing spillover or reducing human-to-human transmission, or sometimes both at once, and typically are governed by resource constraints that require policymakers to make choices. Despite increasing emphasis on using mathematical models to inform disease control policies, little attention has been paid to guiding rational disease control at the animal-human interface. METHODS We introduce a modeling framework to analyze the impacts of different disease control policies, focusing on pathogens exhibiting subcritical transmission among humans (i.e. pathogens that cannot establish sustained human-to-human transmission). We quantify the relative effectiveness of measures to reduce spillover (e.g. reducing contact with animal hosts), human-to-human transmission (e.g. case isolation), or both at once (e.g. vaccination), across a range of epidemiological contexts. RESULTS We provide guidelines for choosing which mode of control to prioritize in different epidemiological scenarios and considering different levels of resource and relative costs. We contextualize our analysis with current zoonotic pathogens and other subcritical pathogens, such as post-elimination measles, and control policies that have been applied. CONCLUSIONS Our work provides a model-based, theoretical foundation to understand and guide policy for subcritical zoonoses, integrating across disciplinary and species boundaries in a manner consistent with One Health principles.
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Affiliation(s)
- Riley O. Mummah
- Department of Ecology and Evolutionary Biology, University of California, 610 Charles E Young Dr S, Los Angeles, CA 90095 USA
- Department of Epidemiology, University of California, Los Angeles, CA 90095 USA
| | - Nicole A. Hoff
- Department of Epidemiology, University of California, Los Angeles, CA 90095 USA
| | - Anne W. Rimoin
- Department of Epidemiology, University of California, Los Angeles, CA 90095 USA
| | - James O. Lloyd-Smith
- Department of Ecology and Evolutionary Biology, University of California, 610 Charles E Young Dr S, Los Angeles, CA 90095 USA
- Fogarty International Center, National Institutes of Health, Bethesda, MD 20892 USA
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Al-Ahmadi KH, Alahmadi MH, Al-Zahrani AS, Hemida MG. Spatial variability of Middle East respiratory syndrome coronavirus survival rates and mortality hazard in Saudi Arabia, 2012–2019. PeerJ 2020. [DOI: 10.7717/peerj.9783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
About 83% of laboratory-confirmed Middle East respiratory syndrome coronavirus (MERS-CoV) cases have emerged from Saudi Arabia, which has the highest overall mortality rate worldwide. This retrospective study assesses the impact of spatial/patient characteristics for 14-and 45-day MERS-CoV mortality using 2012–2019 data reported across Saudi regions and provinces. The Kaplan–Meier estimator was employed to estimate MERS-CoV survival rates, Cox proportional-hazards (CPH) models were applied to estimate hazard ratios (HRs) for 14-and 45-day mortality predictors, and univariate local spatial autocorrelation and multivariate spatial clustering analyses were used to assess the spatial correlation. The 14-day, 45-day and overall mortality rates (with estimated survival rates) were 25.52% (70.20%), 32.35% (57.70%) and 37.30% (56.50%), respectively, with no significant rate variations between Saudi regions and provinces. Nationally, the CPH multivariate model identified that being elderly (age ≥ 61), being a non-healthcare worker (non-HCW), and having an underlying comorbidity were significantly related to 14-day mortality (HR = 2.10, 10.12 and 4.11, respectively; p < 0.0001). The 45-day mortality model identified similar risk factors but with an additional factor: patients aged 41–60 (HR = 1.44; p < 0.0001). Risk factors similar to those in the national model were observed in the Central, East and West regions and Riyadh, Makkah, Eastern, Madinah and Qassim provinces but with varying HRs. Spatial clusters of MERS-CoV mortality in the provinces were identified based on the risk factors (r2 = 0.85–0.97): Riyadh (Cluster 1), Eastern, Makkah and Qassim (Cluster 2), and other provinces in the north and south of the country (Cluster 3). The estimated HRs for the 14-and 45-day mortality varied spatially by province. For 45-day mortality, the highest HRs were found in Makkah (age ≥ 61 and non-HCWs), Riyadh (comorbidity) and Madinah (age 41–60). Coming from Makkah (HR = 1.30 and 1.27) or Qassim province (HR = 1.77 and 1.70) was independently related to higher 14-and 45-day mortality, respectively. MERS-CoV patient survival could be improved by implementing appropriate interventions for the elderly, those with comorbidities and non-HCW patients.
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Affiliation(s)
| | | | - Ali Saeed Al-Zahrani
- King Faisal Specialist Hospital and Research Centre, Riyadh, Riyadh, Saudi Arabia
| | - Maged Gomaa Hemida
- Department of Microbiology, College of Veterinary Medicine, King Faisal University, Al-Hufuf, Al-Hasa, Saudi Arabia
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Kafrelsheikh, Egypt
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Hughes EC, Anderson NE. Zoonotic Pathogens of Dromedary Camels in Kenya: A Systematised Review. Vet Sci 2020; 7:vetsci7030103. [PMID: 32764264 PMCID: PMC7559378 DOI: 10.3390/vetsci7030103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 01/26/2023] Open
Abstract
Kenya is home to Africa’s third largest population of dromedary camels, and production at commercial and local levels are increasingly important. In pastoral and nomadic communities in the arid and semi-arid lands (ASALs), camels play a vital role in food security, while commercial milk production and formalized export markets are rapidly emerging as camel populations expand into non-traditional areas. Until recently, little focus was placed on camels as hosts of zoonotic disease, but the emergence of Middle Eastern respiratory coronavirus (MERS-CoV) in 2012, and the discovery of exposure to the virus in Kenyan camels, highlighted the need for further understanding of this area. This systematised review utilised a robust search strategy to assess the occurrence of camel-associated zoonoses in Kenya and to evaluate the quality of the published literature. Seventy-four studies were identified, covering sixteen pathogens, with an increasing number of good quality studies in recent years. Despite this, the area remains under-researched and there is a lack of robust, high-quality research. Trypanosome spp., Echinococcus granulosus and Brucella spp. appeared most frequently in the literature. Pathogens with the highest reported prevalence were MERS-CoV (0–100%), Echinococcus granulosa (7–60%) and Rift Valley fever virus (7–57%). Exposure to Brucella spp., Coxiella burnetii and Crimean-Congo haemorrhagic fever virus showed higher levels in camel or camel-associated vectors than other livestock species, although brucellosis was the only disease for which there was robust evidence linking camel and human exposure. Zoonotic agents with less severe human health outcomes, such as Dermatophilosus congolensis and contagious ecthyma, were also represented in the literature. This review provides an important summary of the scope and quality of current knowledge. It demonstrates that further research, and improved adherence to robust study design and reporting are essential if the zoonotic risk from camels in Kenya, and elsewhere, is to be better understood.
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Affiliation(s)
- Ellen Clare Hughes
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Roslin EH25 9RG, UK;
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Henry Wellcome Building, Garscube Campus, Glasgow G61 1QH, UK
- Correspondence:
| | - Neil Euan Anderson
- The Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Roslin EH25 9RG, UK;
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Abstract
Emerging infectious diseases continue to be of a significant importance worldwide with the potential to cause major outbreaks and global pandemics. In 2002, the world had witnessed the appearance of the severe acute respiratory syndrome coronavirus in China which disappeared abruptly within 6 months. About a decade later, a new and emerging novel coronavirus named the Middle East respiratory syndrome coronavirus (MERS-CoV) was described in a patient from Saudi Arabia. These two coronaviruses shared multiple similarities in the epidemiology, clinical presentations, and posed challenges in its prevention and management. Seven years since its discovery, MERS-CoV continues to be a lethal zoonotic pathogen capable of causing severe pneumonia with high case fatality rates and the ability to cause large health care-associated outbreaks.
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Affiliation(s)
- Jaffar A Al-Tawfiq
- Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia.,Infectious Disease Division, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Infectious Disease Division, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ziad A Memish
- Director Research & Innovation Center, Research Center Department, King Saud Medical City, Ministry of Health, Riyadh, Saudi Arabia.,Department of Medicine, Al-Faisal University, Riyadh, Saudi Arabia.,Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
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43
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Al-Ahmadi K, Alahmadi M, Al-Zahrani A. Spatial association between primary Middle East respiratory syndrome coronavirus infection and exposure to dromedary camels in Saudi Arabia. Zoonoses Public Health 2020; 67:382-390. [PMID: 32112508 PMCID: PMC7228245 DOI: 10.1111/zph.12697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/10/2020] [Accepted: 02/11/2020] [Indexed: 11/30/2022]
Abstract
Middle East respiratory syndrome coronavirus (MERS‐CoV) is an emerging zoonotic disease. Exposure to dromedary camels (Camelus dromedaries) has been consistently considered the main source of primary human infection. Although Saudi Arabia reports the highest rate of human MERS‐CoV infection and has one of the largest populations of dromedary camels worldwide, their spatial association has not yet been investigated. Thus, this study aimed to examine the correlation between the spatial distribution of primary MERS‐CoV cases with or without a history of camel exposure reported between 2012 and 2019 and dromedary camels at the provincial level in Saudi Arabia. In most provinces, a high proportion of older men develop infections after exposure to camels. Primary human infections during spring and winter were highest in provinces characterized by seasonal breeding and calving, increased camel mobilization and camel–human interactions. A strong and significant association was found between the total number of dromedary camels and the numbers of primary camel‐exposed and non‐exposed MERS‐CoV cases. Furthermore, spatial correlations between MERS‐CoV cases and camel sex, age and dairy status were significant. Via a cluster analysis, we identified Riyadh, Makkah and Eastern provinces as having the most primary MERS‐CoV cases and the highest number of camels. Transmission of MERS‐CoV from camels to humans occurs in most primary cases, but there is still a high proportion of primary infections with an ambiguous link to camels. The results from this study include significant correlations between primary MERS‐CoV cases and camel populations in all provinces, regardless of camel exposure history. This supports the hypothesis of the role of an asymptomatic human carrier or, less likely, an unknown animal host that has direct contact with both infected camels and humans. In this study, we performed a preliminary risk assessment of prioritization measures to control the transmission of infection from camels to humans.
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Affiliation(s)
- Khalid Al-Ahmadi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Mohammed Alahmadi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Ali Al-Zahrani
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Premraj A, Aleyas AG, Nautiyal B, Rasool TJ. Camelid type I interferons: Identification and functional characterization of interferon alpha from the dromedary camel (Camelus dromedarius). Mol Immunol 2020; 119:132-143. [PMID: 32014632 PMCID: PMC7112685 DOI: 10.1016/j.molimm.2020.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/19/2020] [Accepted: 01/24/2020] [Indexed: 11/20/2022]
Abstract
IFN-α gene was cloned from Dromedary camel (Camelus dromedarius). A total of 11 subtypes of camel interferon were identified. Recombinant camel IFN-α1 produced in E. coli. Cd IFN-α1 protein induced interferon-stimulated gene expression. Cd IFN-α1 protein showed antiviral activity against camelpox virus.
Investigations into the molecular immune response of dromedary camel, a key livestock species of the arid, have been limited due to the lack of species-specific reagents. Here we describe for the first time, the identification and characterization of type I IFNs of dromedary camel, which are the most important cytokines in the innate host immune response against viruses. We cloned camel IFN-α coding sequences and identified a total of eleven subtypes. The canonical IFN-α subtype designated as IFN-α1 contained a 555-bp Open Reading Frame encoding a protein of 184 amino acids. Recombinant IFN-α1 protein was produced in E. coli and purified from inclusion bodies. Recombinant camel IFN-α1 induced the mRNA expression of interferon-stimulated genes (ISGs) in camel kidney cells. The purified protein also showed potent in-vitro antiviral activity against Camelpox Virus in kidney cells. The identified camel IFN-α protein and the subtypes will facilitate a better understanding of the host immune response to viral infections in camel and the development of potential antiviral biologicals for zoonotic diseases for which camel act as a reservoir.
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Affiliation(s)
- Avinash Premraj
- Camel Biotechnology Center, Presidential Camels and Camel Racing Affairs centre, Department of the President's Affairs, P O Box 17292, Al Ain, United Arab Emirates
| | - Abi George Aleyas
- Camel Biotechnology Center, Presidential Camels and Camel Racing Affairs centre, Department of the President's Affairs, P O Box 17292, Al Ain, United Arab Emirates
| | - Binita Nautiyal
- Camel Biotechnology Center, Presidential Camels and Camel Racing Affairs centre, Department of the President's Affairs, P O Box 17292, Al Ain, United Arab Emirates
| | - Thaha Jamal Rasool
- Camel Biotechnology Center, Presidential Camels and Camel Racing Affairs centre, Department of the President's Affairs, P O Box 17292, Al Ain, United Arab Emirates.
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45
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Wang W, Wang T, Deng Y, Niu P, A R, Zhao J, Peiris M, Tang S, Tan W. A novel luciferase immunosorbent assay performs better than a commercial enzyme-linked immunosorbent assay to detect MERS-CoV specific IgG in humans and animals. Biosaf Health 2019; 1:134-143. [PMID: 32501446 PMCID: PMC7148641 DOI: 10.1016/j.bsheal.2019.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/16/2019] [Accepted: 12/16/2019] [Indexed: 01/05/2023] Open
Abstract
The Middle East respiratory syndrome (MERS) is a lethal zoonosis caused by MERS coronavirus (MERS-CoV) and poses a significant threat to public health worldwide. Therefore, a rapid, sensitive, and specific serologic test for detecting anti-MERS-CoV antibodies in both humans and animals is urgently needed for the successful management of this illness. Here, we evaluated various novel luciferase immunosorbent assays (LISA) based on nucleocapsid protein (NP) as well as fragments derived from spike protein (S) including subunit 1 (S1), N terminal domain (NTD), receptor-binding domain (RBD) and subunit 2 (S2) of S for the detection of MERS-CoV-specific IgG. Fusion proteins, including nanoluciferase (NLuc) and various fragments derived from the NP or S protein of MERS-CoV, were expressed in human embryonic kidney 293 T cells. LISAs that detected anti-MERS-CoV IgG were further developed using cell lysates expressing various fusion proteins. Panels of human or animal samples infected with MERS-CoV were used to analyze the sensitivity and specificity of various LISAs in reference to a MERS-CoV RT-PCR, commercial S1-based ELISA, and pseudovirus particle neutralization test (ppNT). Our results showed that the S1-, RBD-, and NP-LISAs were more sensitive than the NTD- and S2-LISAs for the detection of anti-MERS-CoV IgG. Furthermore, the S1-, RBD-, and NP-LISAs were more sensitive (by at least 16-fold) than the commercially available S1-ELISA. Moreover, the S1-, RBD-, and NP-LISA specifically recognized anti-MERS-CoV IgG and did not cross-react with samples derived from other human CoV (OC43, 229E, HKU1, NL63)-infected patients. More importantly, these LISAs proved their applicability and reliability for detecting anti-MERS-CoV IgG in samples from camels, monkeys, and mice, among which the RBD-LISA exhibited excellent performance. The results of this study suggest that the novel MERS-CoV RBD- and S1- LISAs are highly effective platforms for the rapid and sensitive detection of anti-MERS-CoV IgG in human and animal samples. These assays have the potential to be used as serologic tests for the management and control of MERS-CoV infection. Scientific question This study evaluated novel luciferase immunosorbent assays (LISAs) based on nucleocapsid protein (NP) as well as fragments derived from spike protein (S) for detection of MERS-CoV-specific IgG in humans and animals. Evidence before this study Enzyme-linked immunosorbent assay (ELISA), microneutralization (MN), immunofluorescence assay (IFA), and pseudovirus particle neutralization test (ppNT) have been performed to detect serum antibodies against MERS-CoV. There remains a need to develop novel serological assays independent of protein purification, special secondary antibody, virus cultivation and Biosafety Level 3 (BSL-3) laboratory. New findings In this study, novel LISAs based on the MERS-CoV S fragments and NP were developed. Human and animal samples infected with MERS-CoV were measured by the newly developed LISAs as well as reference methods including commercial S1-ELISA and ppNT. The results showed that the S1-, RBD-, and NP-LISAs were able to specifically distinguish MERS-CoV-infected samples from samples infected by other HCoV as consistent as the reference methods. Comparing with the commercially available S1-ELISA, the S1- and RBD-LISAs were 64-folds more sensitive. Moreover, the applicability and reliability of the LISAs were verified by detecting anti-MERS-CoV IgG in samples from camels, monkeys, and mice. The RBD-LISA exhibited superior sensitivity and specificity. Significance of the study The novel MERS-CoV RBD- and S1-LISAs were developed independent of protein purification and special secondary antibody, and showed super specificity and efficiency for the detection of anti-MERS-CoV IgG in human and animal samples. These assays are recommended for serological diagnosis of MERS-CoV infection in the investigation of epidemic characteristic, origin tracing and vaccine study of MERS-CoV, they would contribute to the scientific control and prevention of MERS.
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Affiliation(s)
- Wenling Wang
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Tianyu Wang
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China.,Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Yao Deng
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Peihua Niu
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Ruhan A
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China
| | - Jincun Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Disease, The first Affiliated Hospital of Guangzhou Medical University, Guangzhou 510182, China
| | - Malik Peiris
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region
| | - Shixing Tang
- Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Wenjie Tan
- MHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, China CDC, Beijing 102206, China.,Center for Biosafety Mega-science, Chinese Academy of Sciences, Beijing 100101, China
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Affiliation(s)
- Moustafa Kardjadj
- Ecole Supérieure en Science de l’Aliment et des Industries Agro-Alimentaire, Algiers, Algeria; Laboratoire de Recherche «Santé et Productions Animales», Ecole Nationale Supérieure Vétérinaire d’Alger (ENSV), El-Alia, Algiers, Algeria
| | - Adama Diallo
- UMR ASTRE, CIRAD, Montpellier, France; ASTRE, Montpellier University, CIRAD, INRA, Montpellier, France, ISRA-LNERV, Dakar-Hann, Senegal
| | - Renaud Lancelot
- UMR ASTRE, CIRAD, Montpellier, France; ASTRE, Montpellier University, CIRAD, INRA, Montpellier, France
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47
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AlRuthia Y, Somily AM, Alkhamali AS, Bahari OH, AlJuhani RJ, Alsenaidy M, Balkhi B. Estimation Of Direct Medical Costs Of Middle East Respiratory Syndrome Coronavirus Infection: A Single-Center Retrospective Chart Review Study. Infect Drug Resist 2019; 12:3463-3473. [PMID: 31819541 PMCID: PMC6844224 DOI: 10.2147/idr.s231087] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 10/22/2019] [Indexed: 11/23/2022] Open
Abstract
Background Among the countries affected by Middle East respiratory syndrome (MERS), Saudi Arabia was impacted the most, with 2,058 cases reported as of June 2019. However, the impact of the MERS epidemic on the Saudi economy is unknown. Purpose The present study aimed to evaluate the direct medical costs associated with the management of MERS cases at a tertiary referral hospital in Riyadh, Saudi Arabia. Methods The study involved a retrospective chart review of confirmed cases of MERS coronavirus (MERS-CoV) infections in a tertiary care referral center in Riyadh, Saudi Arabia, from January 2015 to October 2018. The collected data included sociodemographic characteristics, medical information, and the cost of hospitalization of each patient as estimated by micro-costing. Results A complete set of relevant information was available only for 24 of 44 identified MERS-CoV cases. Patients were mostly females, and the mean age was 52 years. Diabetes, hypertension, and chronic kidney disease were the most frequent comorbidities. The length of hospital stay varied from 1 to 31 days, averaging 4.96 ± 7.29 days. Two of the 24 patients died. The total cost of managing a MERS case at the hospital ranged from $1278.41 to $75,987.95 with a mean cost of $12,947.03 ± $19,923.14. Conclusion The findings of this study highlight the enormous expenses incurred by the Saudi health care system due to the MERS-CoV outbreak and the importance of developing an enforceable nationwide policy to control MERS-CoV transmission and infection.
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Affiliation(s)
- Yazed AlRuthia
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Pharmacoeconomics Research Unit, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ali M Somily
- Microbiology Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Amal S Alkhamali
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ohud H Bahari
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Raneem J AlJuhani
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Alsenaidy
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Bander Balkhi
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Pharmacoeconomics Research Unit, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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48
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Al-Tawfiq JA, Memish ZA. Middle East respiratory syndrome coronavirus in the last two years: Health care workers still at risk. Am J Infect Control 2019; 47:1167-70. [PMID: 31128983 DOI: 10.1016/j.ajic.2019.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND An important emerging respiratory virus is the Middle East respiratory syndrome coronavirus (MERS-CoV). MERS-CoV had been associated with a high case fatality rate especially among severe cases. METHODS This is a retrospective analysis of reported MERS-CoV cases between December 2016 and January 2019, as retrieved from the World Health Organization. The aim of this study is to examine the epidemiology of reported cases and quantify the percentage of health care workers (HCWs) among reported cases. RESULTS There were 403 reported cases with a majority being men (n = 300; 74.4%). These cases were reported from Lebanon, Malaysia, Oman, Qatar, Saudi Arabia, and United Arab Emirates. HCWs represented 26% and comorbidities were reported among 71% of non-HCWs and 1.9% among HCWs (P < .0001). Camel exposure and camel milk ingestion were reported in 64% each, and the majority (97.8%) of those with camel exposures had camel milk ingestion. There were 58% primary cases and 42% were secondary cases. The case fatality rate was 16% among HCWs compared with 34% among other patients (P = .001). The mean age ± SD was 47.65 ± 16.28 for HCWs versus 54.23 ± 17.34 for non-HCWs (P = .001). CONCLUSIONS MERS-CoV infection continues to have a high case fatality rate and a large proportion of patients were HCWs. Further understanding of the disease transmission and prevention mainly in health care settings are needed.
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49
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John M, Shaiba H. Main factors influencing recovery in MERS Co-V patients using machine learning. J Infect Public Health 2019; 12:700-704. [PMID: 30979679 PMCID: PMC7102802 DOI: 10.1016/j.jiph.2019.03.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/08/2019] [Accepted: 03/24/2019] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Middle East Respiratory Syndrome (MERS) is a major infectious disease which has affected the Middle Eastern countries, especially the Kingdom of Saudi Arabia (KSA) since 2012. The high mortality rate associated with this disease has been a major cause of concern. This paper aims at identifying the major factors influencing MERS recovery in KSA. METHODS The data used for analysis was collected from the Ministry of Health website, KSA. The important factors impelling the recovery are found using machine learning. Machine learning models such as support vector machine, conditional inference tree, naïve Bayes and J48 are modelled to identify the important factors. Univariate and multivariate logistic regression analysis is also carried out to identify the significant factors statistically. RESULT The main factors influencing MERS recovery rate are identified as age, pre-existing diseases, severity of disease and whether the patient is a healthcare worker or not. In spite of MERS being a zoonotic disease, contact with camels is not a major factor influencing recovery. CONCLUSION The methods used were able to determine the prime factors influencing MERS recovery. It can be comprehended that awareness about symptoms and seeking medical intervention at the onset of development of symptoms will make a long way in reducing the mortality rate.
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Affiliation(s)
- Maya John
- Department of Computer Science and Engineering, Sree Buddha College of Engineering, Pathanamthitta, Kerala, India.
| | - Hadil Shaiba
- Department of Computer Science, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
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50
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Farag EA, Haagmans BL, Al-Romaihi H, Mohran K, Haroun M, El-Sayed AM, Koopmans M, AlHajri M, Reusken CBEM. Failure to detect MERS-CoV RNA in urine of naturally infected dromedary camels. Zoonoses Public Health 2019; 66:437-438. [PMID: 31305027 PMCID: PMC7165863 DOI: 10.1111/zph.12583] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 04/07/2019] [Accepted: 04/13/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Elmoubasher A Farag
- Ministry of Public Health, Doha, Qatar.,Department of Viroscience, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Bart L Haagmans
- Department of Viroscience, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | | | - Khaled Mohran
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar.,Biotechnology Department ARC, Animal Health Research Institute (AHRI), Dokki, Egypt
| | - Mohamed Haroun
- Department of Animal Resources, Ministry of Municipality and Environment, Doha, Qatar
| | | | - Marion Koopmans
- Department of Viroscience, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | | | - Chantal B E M Reusken
- Department of Viroscience, Erasmus University Medical Centre, Rotterdam, The Netherlands.,Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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