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Côrtes N, Lira A, Silva JDQ, Carvalho E, Prates-Syed WA, Hamaguchi B, Durães-Carvalho R, Balan A, Câmara NOS, Cabral-Marques O, Pardi N, Sabino EC, Krieger JE, Cabral-Miranda G. A VLPs based vaccine protects against Zika virus infection and prevents cerebral and testicular damage. NPJ Vaccines 2025; 10:107. [PMID: 40425591 PMCID: PMC12116995 DOI: 10.1038/s41541-025-01163-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2024] [Accepted: 05/12/2025] [Indexed: 05/29/2025] Open
Abstract
Still, Zika virus (ZIKV) infection poses a substantial public health risk, especially for pregnant women and their fetuses, as it can result in congenital abnormalities and fetal mortality during pregnancy. Despite significant advances in understanding and combating ZIKV, considerable challenges remain in the fight against this flavivirus. A crucial component of this effort is the development of vaccines, none of which have yet been licensed for human use. Here, we present a comprehensive study of a novel ZIKV vaccine candidate based on virus-like particles (VLPs), designed to provide broad immunological protection against viral infection combined with safety, without the need for additional adjuvants. A self-adjuvanted VLPs-based vaccine displaying the envelope protein domain III (EDIII) of ZIKV was built. The EDIII protein was expressed in E. coli and chemically conjugated to QβVLPs. Immunization of C57BL/6 mice with two doses of the EDIII-QβVLPs vaccine elicited strong EDIII-specific Th1-based immune response. Notably, the vaccine induced neutralizing antibodies and conferred protection in type I IFN receptor-deficient (G129) mice against ZIKV challenge. Furthermore, vaccinated male mice were protected from ZIKV-induced cerebral and testicular damage, critical concerns for ZIKV pathogenesis. These findings suggest that the EDIII-QβVLP vaccine is a promising candidate for preventing ZIKV infection, with potential applications in combatting this and other emerging flaviviruses.
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Affiliation(s)
- Nelson Côrtes
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Aline Lira
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jaqueline D Q Silva
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Evelyn Carvalho
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Wasim A Prates-Syed
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Barbara Hamaguchi
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Biophysics, São Paulo School of Medicine, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Ricardo Durães-Carvalho
- Department of Microbiology, Immunology and Parasitology, São Paulo School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
- Department of Morphology and Genetics, Federal University of São Paulo, São Paulo, Brazil
- Interunit Bioinformatics Graduate Program, Institute of Chemistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Andrea Balan
- Applied Structural Biology Laboratory, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Niels O S Câmara
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Otavio Cabral-Marques
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, São Paulo, Brazil
- Department of Medicine, Division of Molecular Medicine, Laboratory of Medical Investigation 29, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- DO'R Institute for Research, São Paulo, Brazil
| | - Norbert Pardi
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ester C Sabino
- Department of Pathology, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - José E Krieger
- Laboratory of Genetics and Molecular Cardiology, Clinical Hospital, Faculty of Medicine, University of São Paulo, Heart Institute, São Paulo, Brazil
| | - Gustavo Cabral-Miranda
- Department of Infectious Diseases and Tropical Medicine, Laboratory of Medical Investigation 46, Faculty of Medicine, University of São Paulo, São Paulo, Brazil.
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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Tsang TK, Rojas DP, Xu F, Xu Y, Zhu X, Halloran ME, Longini IM, Yang Y. Estimating transmissibility of Zika virus in Colombia in the presence of surveillance bias. Nat Commun 2025; 16:4299. [PMID: 40341193 PMCID: PMC12062338 DOI: 10.1038/s41467-025-59655-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2025] [Accepted: 04/28/2025] [Indexed: 05/10/2025] Open
Abstract
The 2015-2016 Zika virus outbreak in the Americas presented significant challenges in understanding the transmission dynamics due to substantial reporting biases, as women of reproductive age (15-39 years) were disproportionately represented in the surveillance data when public awareness of relationship between Zika and microcephaly increased. Using national surveillance data from Colombia during July 27, 2015-November 21, 2016, we developed a Bayesian hierarchical modeling framework to reconstruct the true numbers of symptomatic cases and estimate transmission parameters while accounting for differential reporting across age-sex groups. Our model revealed that the detection rate of symptomatic cases among women of reproductive age was 99% (95% CI: 98.7-100), compared to 85.4% (95% CI: 84.7-86.1) in other demographic groups. After correcting for these biases, our results showed that females aged 15-39 years remained 82.8% (95% CI: 80.2-85.2%) more susceptible to Zika symptomatic infection than males of the same age, independent of differential reporting areas. Departments with medium-high altitude, medium-high population density, low coverage of forest, or high dengue incidence from 2011-2015 exhibited greater Zika risk. This study underscores the importance of accounting for surveillance biases in epidemiological studies to better understand factors influencing Zika transmission and to inform disease control and prevention.
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Affiliation(s)
- Tim K Tsang
- World Health Organization Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China.
- Department of Biostatistics, University of Florida, Gainesville, FL, USA.
| | - Diana P Rojas
- Department of Epidemiology, University of Florida, Gainesville, FL, USA
| | - Fei Xu
- Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Yanfang Xu
- World Health Organization Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Xiaolin Zhu
- Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - M Elizabeth Halloran
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Ira M Longini
- Department of Biostatistics, University of Florida, Gainesville, FL, USA
| | - Yang Yang
- Department of Biostatistics, University of Florida, Gainesville, FL, USA.
- Department of Statistics, Franklin College of Arts and Sciences, University of Georgia, Athens, GA, USA.
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3
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Smith TC, Espinoza DO, Zhu Y, Cardona-Ospina JA, Bowman NM, Becker-Dreps S, Rouphael N, Rodriguez-Morales AJ, Bucardo F, Edupuganti S, Premkumar L, Mulligan MJ, de Silva AM, Collins MH. Natural infection by Zika virus but not DNA vaccination consistently elicits antibodies that compete with two potently neutralising monoclonal antibodies targeting distinct epitopes. EBioMedicine 2023; 98:104875. [PMID: 37983984 PMCID: PMC10694573 DOI: 10.1016/j.ebiom.2023.104875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 10/17/2023] [Accepted: 10/31/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND Autochthonous transmission of Zika virus (ZIKV) has been reported in 87 countries since 2015. Although most infections are mild, there is risk of Guillain-Barré syndrome and adverse pregnancy outcomes. Vaccines are urgently needed to prevent Zika, but sufficient understanding of humoral responses and tools to assess ZIKV-specific immunity are lacking. METHODS We developed a blockade-of-binding (BOB) ELISA using A9E and G9E, two strongly neutralising ZIKV-specific monoclonal antibodies, which do not react with dengue virus. Receiver operating characteristic curve analysis assessed A9E and G9E BOB serodiagnostic performance. BOB was then applied to samples from a surveillance cohort in Risaralda, Colombia, and phase 1 ZIKV vaccine trial samples, comparing results against traditional serologic tests. FINDINGS In the validation sample set (n = 120), A9E BOB has a sensitivity of 93.5% (95% CI: 79.3, 98.9) and specificity 97.8 (95% CI: 92.2, 99.6). G9E BOB had a sensitivity of 100% (95% CI: 89.0, 100.0) and specificity 100% (95% CI: 95.9, 100). Serum from natural infections consistently tested positive in these assays for up to one year, and reactivity tracks well with ZIKV infection status among sera from endemic areas with complicated flavivirus exposures. Interestingly, a leading ZIKV vaccine candidate elicited minimal BOB reactivity despite generating neutralising antibody responses. INTERPRETATION In conclusion, A9E and G9E BOB assays are sensitive and specific assays for detecting antibodies elicited by recent or remote ZIKV infections. Given the additional ability of these BOB assays to detect immune responses that target different epitopes, further development of these assays is well justified for applications including flavivirus surveillance, translational vaccinology research and as potential serologic correlates of protective immunity against Zika. FUNDING R21 AI129532 (PI: S. Becker-Dreps), CDCBAA 2017-N-18041 (PI: A. M. de Silva), Thrasher Fund (PI: M. H. Collins), K22 AI137306 (PI: M. H. Collins).
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Affiliation(s)
- Teresa C Smith
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Daniel O Espinoza
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Yerun Zhu
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Jaime A Cardona-Ospina
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda, Colombia; Emerging Infectious Diseases and Tropical Medicine Research Group, Instituto para la Investigación en Ciencias Biomédicas - Sci-Help, Pereira, Colombia
| | - Natalie M Bowman
- Division of Infectious Diseases, Department of Medicine, University of North Carolina Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Sylvia Becker-Dreps
- Department of Family Medicine, University of North Carolina Chapel Hill, Chapel Hill, NC, USA; Department of Epidemiology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Nadine Rouphael
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Alfonso J Rodriguez-Morales
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, Risaralda, Colombia; Faculty of Health Sciences, Universidad Científica del Sur, Lima, Peru; Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut, Lebanon
| | - Filemon Bucardo
- Department of Microbiology and Parasitology, Universidad Nacional Autónoma de Nicaragua-León, León, Nicaragua
| | - Srilatha Edupuganti
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Lakshmanane Premkumar
- Department of Microbiology and Immunology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | | | - Aravinda M de Silva
- Department of Microbiology and Immunology, University of North Carolina Chapel Hill, Chapel Hill, NC, USA
| | - Matthew H Collins
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA.
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Zepeda O, Espinoza DO, Martinez E, Cross KA, Becker-Dreps S, de Silva AM, Bowman NM, Premkumar L, Stringer EM, Bucardo F, Collins MH. Antibody Immunity to Zika Virus among Young Children in a Flavivirus-Endemic Area in Nicaragua. Viruses 2023; 15:796. [PMID: 36992504 PMCID: PMC10052059 DOI: 10.3390/v15030796] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/03/2023] [Accepted: 03/11/2023] [Indexed: 03/31/2023] Open
Abstract
Objective: To understand the dynamics of Zika virus (ZIKV)-specific antibody immunity in children born to mothers in a flavivirus-endemic region during and after the emergence of ZIKV in the Americas. Methods: We performed serologic testing for ZIKV cross-reactive and type-specific IgG in two longitudinal cohorts, which enrolled pregnant women and their children (PW1 and PW2) after the beginning of the ZIKV epidemic in Nicaragua. Quarterly samples from children over their first two years of life and maternal blood samples at birth and at the end of the two-year follow-up period were studied. Results: Most mothers in this dengue-endemic area were flavivirus-immune at enrollment. ZIKV-specific IgG (anti-ZIKV EDIII IgG) was detected in 82 of 102 (80.4%) mothers in cohort PW1 and 89 of 134 (66.4%) mothers in cohort PW2, consistent with extensive transmission observed in Nicaragua during 2016. ZIKV-reactive IgG decayed to undetectable levels by 6-9 months in infants, whereas these antibodies were maintained in mothers at the year two time point. Interestingly, a greater contribution to ZIKV immunity by IgG3 was observed in babies born soon after ZIKV transmission. Finally, 43 of 343 (13%) children exhibited persistent or increasing ZIKV-reactive IgG at ≥9 months, with 10 of 30 (33%) tested demonstrating serologic evidence of incident dengue infection. Conclusions: These data inform our understanding of protective and pathogenic immunity to potential flavivirus infections in early life in areas where multiple flaviviruses co-circulate, particularly considering the immune interactions between ZIKV and dengue and the future possibility of ZIKV vaccination in women of childbearing potential. This study also shows the benefits of cord blood sampling for serologic surveillance of infectious diseases in resource-limited settings.
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Affiliation(s)
- Omar Zepeda
- Department of Microbiology, Faculty of Medical Science, National Autonomous University of Nicaragua, León 21000, Nicaragua
| | - Daniel O. Espinoza
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Evelin Martinez
- Department of Microbiology, Faculty of Medical Science, National Autonomous University of Nicaragua, León 21000, Nicaragua
| | - Kaitlyn A. Cross
- Department of Biostatistics, Gillings School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sylvia Becker-Dreps
- Department of Family Medicine and Epidemiology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Aravinda M. de Silva
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Natalie M. Bowman
- Division of Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Lakshmanane Premkumar
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Elizabeth M. Stringer
- Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Filemón Bucardo
- Department of Microbiology, Faculty of Medical Science, National Autonomous University of Nicaragua, León 21000, Nicaragua
| | - Matthew H. Collins
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
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Prudencio CR, Gomes da Costa V, Rocha LB, da Costa HHM, Orts DJB, da Silva Santos FR, Rahal P, Lino NAB, da Conceição PJP, Bittar C, Machado RRG, Durigon EL, Araujo JP, Polatto JM, da Silva MA, de Oliveira JA, Mitsunari T, Pereira LR, Andreata-Santos R, de Souza Ferreira LC, Luz D, Piazza RMF. Identification of Zika Virus NS1-Derived Peptides with Potential Applications in Serological Tests. Viruses 2023; 15:v15030654. [PMID: 36992364 PMCID: PMC10052002 DOI: 10.3390/v15030654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/14/2023] [Accepted: 02/23/2023] [Indexed: 03/05/2023] Open
Abstract
Zika virus (ZIKV), a mosquito-borne pathogen, is an emerging arbovirus associated with sporadic symptomatic cases of great medical concern, particularly among pregnant women and newborns affected with neurological disorders. Serological diagnosis of ZIKV infection is still an unmet challenge due to the co-circulation of the dengue virus, which shares extensive sequence conservation of structural proteins leading to the generation of cross-reactive antibodies. In this study, we aimed to obtain tools for the development of improved serological tests for the detection of ZIKV infection. Polyclonal sera (pAb) and a monoclonal antibody (mAb 2F2) against a recombinant form of the ZIKV nonstructural protein 1 (NS1) allowed the identification of linear peptide epitopes of the NS1 protein. Based on these findings, six chemically synthesized peptides were tested both in dot blot and ELISA assays using convalescent sera collected from ZIKV-infected patients. Two of these peptides specifically detected the presence of ZIKV antibodies and proved to be candidates for the detection of ZIKV-infected subjects. The availability of these tools opens perspectives for the development of NS1-based serological tests with enhanced sensitivity regarding other flaviviruses.
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Affiliation(s)
- Carlos Roberto Prudencio
- Laboratório de Imunobiotecnologia, Centro de Imunologia, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, São Paulo 01246-902, SP, Brazil
- Correspondence: (C.R.P.); (D.L.); (R.M.F.P.); Tel.: +55-11-3068-2886 (C.R.P.); +55-11-2627-9708 (D.L.); +55-11-2627-9724 (R.M.F.P.)
| | - Vivaldo Gomes da Costa
- Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Cristóvão Colombo, 2265, São Jose do Rio Preto 15054-000, SP, Brazil
| | - Leticia Barboza Rocha
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
| | - Hernan Hermes Monteiro da Costa
- Laboratório de Imunobiotecnologia, Centro de Imunologia, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, São Paulo 01246-902, SP, Brazil
| | - Diego José Belato Orts
- Laboratório de Imunobiotecnologia, Centro de Imunologia, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, São Paulo 01246-902, SP, Brazil
| | - Felipe Rocha da Silva Santos
- Laboratório de Imunobiotecnologia, Centro de Imunologia, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, São Paulo 01246-902, SP, Brazil
| | - Paula Rahal
- Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Cristóvão Colombo, 2265, São Jose do Rio Preto 15054-000, SP, Brazil
| | - Nikolas Alexander Borsato Lino
- Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Cristóvão Colombo, 2265, São Jose do Rio Preto 15054-000, SP, Brazil
| | - Pâmela Jóyce Previdelli da Conceição
- Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Cristóvão Colombo, 2265, São Jose do Rio Preto 15054-000, SP, Brazil
| | - Cintia Bittar
- Instituto de Biociências Letras e Ciências Exatas, Universidade Estadual Paulista Júlio de Mesquita Filho, Rua Cristóvão Colombo, 2265, São Jose do Rio Preto 15054-000, SP, Brazil
| | - Rafael Rahal Guaragna Machado
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
| | - Edison Luiz Durigon
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
| | - João Pessoa Araujo
- Instituto de Biotecnologia, Universidade Estadual Paulista Júlio de Mesquita Filho, Botucatu 18607-440, SP, Brazil
| | - Juliana Moutinho Polatto
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
| | - Miriam Aparecida da Silva
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
| | - Joyce Araújo de Oliveira
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
| | - Thais Mitsunari
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
| | - Lennon Ramos Pereira
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
| | - Robert Andreata-Santos
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
| | - Luís Carlos de Souza Ferreira
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
- Plataforma Científica Pasteur USP, Universidade de São Paulo, São Paulo 05508-000, SP, Brazil
| | - Daniela Luz
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
- Correspondence: (C.R.P.); (D.L.); (R.M.F.P.); Tel.: +55-11-3068-2886 (C.R.P.); +55-11-2627-9708 (D.L.); +55-11-2627-9724 (R.M.F.P.)
| | - Roxane Maria Fontes Piazza
- Laboratório de Bacteriologia, Instituto Butantan, Av. Vital Brazil, 1500, São Paulo 05503-900, SP, Brazil
- Correspondence: (C.R.P.); (D.L.); (R.M.F.P.); Tel.: +55-11-3068-2886 (C.R.P.); +55-11-2627-9708 (D.L.); +55-11-2627-9724 (R.M.F.P.)
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Bonilla-Aldana DK, Castaño-Betancourt KJ, Ortega-Martínez JM, Ulloque-Badaracco JR, Hernandez-Bustamante EA, Benites-Zapata VA, Rodriguez-Morales AJ. Prevalence of zoonotic and non-zoonotic Rickettsia in horses: A systematic review and meta-analysis. New Microbes New Infect 2022; 51:101068. [PMID: 36632173 PMCID: PMC9827057 DOI: 10.1016/j.nmni.2022.101068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
In a broad sense, Rickettsiae are a group of microorganisms that can be transmitted mechanically or biologically to animals and humans. Rickettsioses are associated with hematic manifestations. Its prevalence in humans, dogs and other animals has been widely explored, but not in equine species. To determine the prevalence of Rickettsia infection in horses. A systematic review of the literature was carried out in five databases for the proportion of horses infected with Rickettsia, defined by molecular and immunological techniques. A meta-analysis was performed using a random-effects model to calculate the pooled prevalence and 95% confidence intervals (CI). The Cochran's Q test and the I2 statistic were used to assess the between-study-heterogeneity. The pooled prevalence of Rickettsia in equines was 37.0% (95% CI: 26.0%-47.0%), with significant heterogeneity among studies (I2 = 98.12%). In the subgroup analysis, the prevalence of Rickettsia in horses was found to be 24.0% (95%CI: 10.0%-41.0%) for IFI, 47.0% (95%CI: 30.0%-64.0%) for IFA, 14.0% (95%CI: 11.0%-17.0%) for IFAT and 39.0% (95%CI: 0.0%-95.0%) for PCR. There was a high prevalence of Rickettsia among horses, with some of the species being zoonotic, with their corresponding implications for humans, which increasingly are in close contact with equines, particularly horses and their ticks, posing a risk for spillover and transmission.
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Affiliation(s)
- D. Katterine Bonilla-Aldana
- Research Unit, Universidad Continental, Huancayo, Peru,Red Colombiana de Enfermedades Transmitidas por Garrapatas en Pequeños Animales (RECEPA) - Colombian Network of Tick-Borne Diseases in Small Animals (RECEPA), Pereira, Risaralda, Colombia
| | - Karen Johana Castaño-Betancourt
- Faculty of Veterinary Medicine, Fundación Universitaria Autónoma de Las Américas – Institución Universitaria Visión de Las Américas, Pereira, Risaralda, Colombia
| | - Juan Manuel Ortega-Martínez
- Faculty of Veterinary Medicine, Fundación Universitaria Autónoma de Las Américas – Institución Universitaria Visión de Las Américas, Pereira, Risaralda, Colombia
| | | | - Enrique A. Hernandez-Bustamante
- Sociedad Científica de Estudiantes de Medicina de La Universidad Nacional de Trujillo, Trujillo, Peru,Grupo Peruano de Investigación Epidemiológica, Unidad de Investigación para La Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Vicente A. Benites-Zapata
- Grupo Peruano de Investigación Epidemiológica, Unidad de Investigación para La Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru,Corresponding author.
| | - Alfonso J. Rodriguez-Morales
- Faculty of Health Sciences, Universidad Científica Del Sur, Lima, Peru,Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de Las Américas – Institución Universitaria Visión de Las Américas, Pereira, Risaralda, Colombia,Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Beirut P.O. Box 36, Lebanon,Red Colombiana de Enfermedades Transmitidas por Garrapatas en Pequeños Animales (RECEPA) - Colombian Network of Tick-Borne Diseases in Small Animals (RECEPA), Pereira, Risaralda, Colombia
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Cabrera M, Leake J, Naranjo-Torres J, Valero N, Cabrera JC, Rodríguez-Morales AJ. Dengue Prediction in Latin America Using Machine Learning and the One Health Perspective: A Literature Review. Trop Med Infect Dis 2022; 7:322. [PMID: 36288063 PMCID: PMC9611387 DOI: 10.3390/tropicalmed7100322] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/07/2022] [Accepted: 10/14/2022] [Indexed: 11/23/2022] Open
Abstract
Dengue fever is a serious and growing public health problem in Latin America and elsewhere, intensified by climate change and human mobility. This paper reviews the approaches to the epidemiological prediction of dengue fever using the One Health perspective, including an analysis of how Machine Learning techniques have been applied to it and focuses on the risk factors for dengue in Latin America to put the broader environmental considerations into a detailed understanding of the small-scale processes as they affect disease incidence. Determining that many factors can act as predictors for dengue outbreaks, a large-scale comparison of different predictors over larger geographic areas than those currently studied is lacking to determine which predictors are the most effective. In addition, it provides insight into techniques of Machine Learning used for future predictive models, as well as general workflow for Machine Learning projects of dengue fever.
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Affiliation(s)
- Maritza Cabrera
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Universidad Católica del Maule, Talca 3480094, Chile
- Facultad Ciencias de la Salud, Universidad Católica del Maule, Talca 3480094, Chile
| | - Jason Leake
- Department of Engineering Design and Mathematics, Faculty of Environment and Technology, University of the West of England, Bristol BS16 1QY, UK
| | - José Naranjo-Torres
- Academic and ML Consulting Department, Global Consulting H&G, 8682 Sorrento Street, Orlando, FL 32819, USA
| | - Nereida Valero
- Instituto de Investigaciones Clínicas Dr. Américo Negrette, Facultad de Medicina, Universidad del Zulia, Maracaibo 4001, Zulia, Venezuela
| | - Julio C. Cabrera
- Faculty of Engineering, Computing Engineering, Universidad Rafael Belloso Chacín, Maracaibo 4005, Zulia, Venezuela
| | - Alfonso J. Rodríguez-Morales
- Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas, Pereira 660003, Colombia
- Master of Clinical Epidemiology and Biostatistics, Universidad Científica del Sur, Lima 156104, Peru
- Faculty of Medicine, Institución Universitaria Visión de las Américas, Pereira 660003, Colombia
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