RT Journal Article SR Electronic T1 Mass Mortality of Marine Mammals Associated to Highly Pathogenic Influenza Virus (H5N1) in South America JF bioRxiv FD Cold Spring Harbor Laboratory SP 2023.02.08.527769 DO 10.1101/2023.02.08.527769 A1 Víctor Gamarra-Toledo A1 Pablo I. Plaza A1 Roberto Gutiérrez A1 Giancarlo Inga-Diaz A1 Patricia Saravia-Guevara A1 Oliver Pereyra-Meza A1 Elver Coronado-Flores A1 Antonio Calderón-Cerrón A1 Gonzalo Quiroz-Jiménez A1 Paola Martinez A1 Deyvis Huamán-Mendoza A1 José C. Nieto-Navarrete A1 Sandra Ventura A1 Sergio A. Lambertucci YR 2023 UL http://biorxiv.org/content/early/2023/03/02/2023.02.08.527769.abstract AB We report a massive mortality of more than 3,000 sea lions (Otaria flavescens) of Peru associated with a Highly Pathogenic Influenza Virus (H5N1). The transmission pathway of H5N1 may have been through the close contact of sea lions with infected wild birds. We cannot rule out direct transmission among sea lions.Competing Interest StatementThe authors have declared no competing interest.