Fatal yellow fever among captive non-human primates in southern Colombia, 2025

BackgroundYellow fever virus (YFV) remains a re-emerging zoonotic threat in South America. While epizootics in free-ranging Alouatta spp. are well-documented, little is known about YFV infection in other Neotropical non-human primates (NHPs), particularly in captive settings. Here, we report eight N...

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Main Authors: Ivan Camilo Sanchez-Rojas, D. Katterine Bonilla-Aldana, Catherin Lorena Solarte-Jimenez, Jorge Luis Bonilla-Aldana, Marixa Belisario-Tovar, Sidaly Ortega-Gómez, Vilma Marielis Zambrano-Quenan, Julian Camilo Perafan-Gomez, Carlos Hernan Gomez-Ocampo, Mayerly Delgado-Cajigas, Alfonso J. Rodriguez-Morales
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Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Veterinary Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2025.1655474/full
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author Ivan Camilo Sanchez-Rojas
D. Katterine Bonilla-Aldana
Catherin Lorena Solarte-Jimenez
Jorge Luis Bonilla-Aldana
Marixa Belisario-Tovar
Sidaly Ortega-Gómez
Vilma Marielis Zambrano-Quenan
Julian Camilo Perafan-Gomez
Carlos Hernan Gomez-Ocampo
Mayerly Delgado-Cajigas
Alfonso J. Rodriguez-Morales
Alfonso J. Rodriguez-Morales
author_facet Ivan Camilo Sanchez-Rojas
D. Katterine Bonilla-Aldana
Catherin Lorena Solarte-Jimenez
Jorge Luis Bonilla-Aldana
Marixa Belisario-Tovar
Sidaly Ortega-Gómez
Vilma Marielis Zambrano-Quenan
Julian Camilo Perafan-Gomez
Carlos Hernan Gomez-Ocampo
Mayerly Delgado-Cajigas
Alfonso J. Rodriguez-Morales
Alfonso J. Rodriguez-Morales
author_sort Ivan Camilo Sanchez-Rojas
collection DOAJ
description BackgroundYellow fever virus (YFV) remains a re-emerging zoonotic threat in South America. While epizootics in free-ranging Alouatta spp. are well-documented, little is known about YFV infection in other Neotropical non-human primates (NHPs), particularly in captive settings. Here, we report eight NHP fatalities associated with YFV occurring in early 2025, in the Colombian department of Putumayo, a known endemic area.Cases descriptionBetween February and May 2025, eight fatal YFV cases were confirmed via RT-PCR in four NHP genera—Cebus albifrons, Ateles fusciceps (IUCN-endangered), Lagothrix lagotricha (vulnerable), and Aotus spp.—housed at wildlife centers or found nearby. Clinical signs included jaundice, lethargy, dyspnea, and mucosal pallor. Gross pathology revealed multisystemic involvement, with frequent hepatic necrosis, myocarditis, pulmonary edema, and severe parasitism. Histopathological examination in three representative cases identified hallmark features of yellow fever hepatitis: midzonal to centrilobular necrosis, Councilman bodies, steatosis, and sinusoidal congestion. These findings confirm fulminant YFV infection in previously undocumented captive primate hosts.ConclusionThis report presents the first evidence of natural YFV infection in C. albifrons, A. fusciceps, and L. lagotricha under managed care conditions. The presence of YFV in endangered and vulnerable NHPs has critical implications for conservation and public health. Epizootic surveillance protocols must expand beyond Alouatta spp. to include a broader range of species and captive populations. Reinforced vector control, biosafety measures, and One Health-based interventions are urgently needed to prevent spillover and enhance preparedness for future outbreaks.
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spelling doaj-art-c5d2b1751d8c40e89e9f1ee9eb8a104b2025-08-21T09:13:21ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692025-08-011210.3389/fvets.2025.16554741655474Fatal yellow fever among captive non-human primates in southern Colombia, 2025Ivan Camilo Sanchez-Rojas0D. Katterine Bonilla-Aldana1Catherin Lorena Solarte-Jimenez2Jorge Luis Bonilla-Aldana3Marixa Belisario-Tovar4Sidaly Ortega-Gómez5Vilma Marielis Zambrano-Quenan6Julian Camilo Perafan-Gomez7Carlos Hernan Gomez-Ocampo8Mayerly Delgado-Cajigas9Alfonso J. Rodriguez-Morales10Alfonso J. Rodriguez-Morales11Grupo de Investigación en Recursos Naturales Amazónicos GRAM, Institución Universitaria del Putumayo, Mocoa, ColombiaCollege of Medicine, Korea University, Seoul, Republic of KoreaGrupo de Investigación en Recursos Naturales Amazónicos GRAM, Institución Universitaria del Putumayo, Mocoa, ColombiaGrupo de Virologia, Universidad El Bosque, Bogotá, ColombiaVeterinarian Div., CEA CORPOAMAZONIA, Mocoa, ColombiaGeneral Direction, Corporación para el Desarrollo Sostenible del Sur de la Amazonia (CORPOAMAZONIA), Mocoa, ColombiaSubdirection of Environmental Administration, Corporación para el Desarrollo Sostenible del Sur de la Amazonia (CORPOAMAZONIA), Mocoa, ColombiaAdvisory Board Adjunct to General Direction, CORPOAMAZONIA, Mocoa, ColombiaVeterinarian Div., CEA CORPOAMAZONIA, Mocoa, ColombiaBiology Div., CEA CORPOAMAZONIA, Mocoa, ColombiaFaculty of Health Sciences, Universidad Científica del Sur, Lima, Peru0Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Américas-Institución Universitaria Visión de las Américas, Pereira, ColombiaBackgroundYellow fever virus (YFV) remains a re-emerging zoonotic threat in South America. While epizootics in free-ranging Alouatta spp. are well-documented, little is known about YFV infection in other Neotropical non-human primates (NHPs), particularly in captive settings. Here, we report eight NHP fatalities associated with YFV occurring in early 2025, in the Colombian department of Putumayo, a known endemic area.Cases descriptionBetween February and May 2025, eight fatal YFV cases were confirmed via RT-PCR in four NHP genera—Cebus albifrons, Ateles fusciceps (IUCN-endangered), Lagothrix lagotricha (vulnerable), and Aotus spp.—housed at wildlife centers or found nearby. Clinical signs included jaundice, lethargy, dyspnea, and mucosal pallor. Gross pathology revealed multisystemic involvement, with frequent hepatic necrosis, myocarditis, pulmonary edema, and severe parasitism. Histopathological examination in three representative cases identified hallmark features of yellow fever hepatitis: midzonal to centrilobular necrosis, Councilman bodies, steatosis, and sinusoidal congestion. These findings confirm fulminant YFV infection in previously undocumented captive primate hosts.ConclusionThis report presents the first evidence of natural YFV infection in C. albifrons, A. fusciceps, and L. lagotricha under managed care conditions. The presence of YFV in endangered and vulnerable NHPs has critical implications for conservation and public health. Epizootic surveillance protocols must expand beyond Alouatta spp. to include a broader range of species and captive populations. Reinforced vector control, biosafety measures, and One Health-based interventions are urgently needed to prevent spillover and enhance preparedness for future outbreaks.https://www.frontiersin.org/articles/10.3389/fvets.2025.1655474/fullAtelesCebusLagothrixAotusflavivirusyellow fever
spellingShingle Ivan Camilo Sanchez-Rojas
D. Katterine Bonilla-Aldana
Catherin Lorena Solarte-Jimenez
Jorge Luis Bonilla-Aldana
Marixa Belisario-Tovar
Sidaly Ortega-Gómez
Vilma Marielis Zambrano-Quenan
Julian Camilo Perafan-Gomez
Carlos Hernan Gomez-Ocampo
Mayerly Delgado-Cajigas
Alfonso J. Rodriguez-Morales
Alfonso J. Rodriguez-Morales
Fatal yellow fever among captive non-human primates in southern Colombia, 2025
Frontiers in Veterinary Science
Ateles
Cebus
Lagothrix
Aotus
flavivirus
yellow fever
title Fatal yellow fever among captive non-human primates in southern Colombia, 2025
title_full Fatal yellow fever among captive non-human primates in southern Colombia, 2025
title_fullStr Fatal yellow fever among captive non-human primates in southern Colombia, 2025
title_full_unstemmed Fatal yellow fever among captive non-human primates in southern Colombia, 2025
title_short Fatal yellow fever among captive non-human primates in southern Colombia, 2025
title_sort fatal yellow fever among captive non human primates in southern colombia 2025
topic Ateles
Cebus
Lagothrix
Aotus
flavivirus
yellow fever
url https://www.frontiersin.org/articles/10.3389/fvets.2025.1655474/full
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