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Volume 29, Number 12—December 2023
Research Letter

Mass Mortality of Sea Lions Caused by Highly Pathogenic Avian Influenza A(H5N1) Virus

Víctor Gamarra-Toledo1Comments to Author , Pablo I. Plaza1, Roberto Gutiérrez, Giancarlo Inga-Diaz, Patricia Saravia-Guevara, Oliver Pereyra-Meza, Elver Coronado-Flores, Antonio Calderón-Cerrón, Gonzalo Quiroz-Jiménez, Paola Martinez, Deyvis Huamán-Mendoza, José C. Nieto-Navarrete, Sandra Ventura, and Sergio A. Lambertucci
Author affiliations: Grupo de Investigaciones en Biología de la Conservación, Laboratorio Ecotono, INIBIOMA, Universidad Nacional del Comahue—CONICET, Bariloche, Argentina (V. Gamarra-Toledo, P.I. Plaza, S.A. Lambertucci); Museo de Historia Natural, Universidad Nacional de San Agustín de Arequipa, Arequipa, Peru (V. Gamarra-Toledo, R. Gutiérrez); Servicio Nacional de Áreas Naturales Protegidas por el Estado, Lima, Peru (R. Gutiérrez, G. Inga-Diaz, P. Saravia-Guevara, O. Pereyra-Meza, E. Coronado-Flores, A. Calderón-Cerrón, G. Quiroz-Jiménez, P. Martinez, D. Huamán-Mendoza, J.C. Nieto-Navarrete, S. Ventura); Asociación Convive Perú, Madre de Dios, Perú (G. Inga-Diaz)

Main Article

Figure

Sea lion deaths and investigation associated with outbreak of highly pathogenic avian influenza A(H5N1) in Paracas National Reserve, Peru, on the coastline, February 2023. A) Sea lion carcasses on the beach. B) Dying sea lion with ataxia. C) Dead sea lion with avian influenza clinical signs (whitish secretions). D) Sea lion necropsy showing a congestive brain. E) Sea lion trapping and eating a sick guanay cormorant, January 23, 2023. F) Field work sampling on a beach with a large number of bathers in the surroundings of infected carcasses. Red arrow indicates study staff wearing health protection equipment conducting field survey. Photograph credits: A, B, and D, Daniel Ampuero; C and F, Giancarlo Inga; E, Sandra Lizarme.

Figure. Sea lion deaths and investigation associated with outbreak of highly pathogenic avian influenza A(H5N1) in Paracas National Reserve, Peru, on the coastline, February 2023. A) Sea lion carcasses on the beach. B) Dying sea lion with ataxia. C) Dead sea lion with avian influenza clinical signs (whitish secretions). D) Sea lion necropsy showing a congestive brain. E) Sea lion trapping and eating a sick guanay cormorant, January 23, 2023. F) Field work sampling on a beach with a large number of bathers in the surroundings of infected carcasses. Red arrow indicates study staff wearing health protection equipment conducting field survey. Photograph credits: A, B, and D, Daniel Ampuero; C and F, Giancarlo Inga; E, Sandra Lizarme.

Main Article

1These two authors contributed equally to the study.

Page created: October 30, 2023
Page updated: November 18, 2023
Page reviewed: November 18, 2023
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