Phylogenetic Analysis Reveals That the H5N1 Avian Influenza A Outbreak in Poultry in Ecuador in November 2022 is Associated with the Highly Pathogenic Clade 2.3.4.4b

Overview

Journal Int J Infect Dis

Publisher Elsevier

Specialty Infectious Diseases

Date 2023 Apr 22

PMID 37086864

Authors

Alfredo Bruno

Alonzo Alfaro-Nunez

Domenica de Mora

Ruben Armas

Maritza Olmedo

Jimmy Garces

Maria Sol Vaca

Euclides De la Torre

David Jarrin

Lidia Burbano

Johanna Salas

Cristian Imbacuan

Jose Chanatasig

Margoth Barrionuevo

Maria Cristina Galante

Veronica Salas

Natalia Goni

Juan Cristina

Christian Steffe Domingues

Lucas Oliveira Montesino

Fernanda Gomes Cardoso

Dilmara Reischak

Miguel Angel Garcia-Bereguiain

Affiliations

Soon will be listed here.

Abstract

The ongoing H5N1 outbreak in the Americas caused by clade 2.3.4.4 is causing unprecedented impact in poultry and wild birds. In November 2022, a highly pathogenic avian influenza A outbreak was declared in poultry in Ecuador, affecting more than 1.1 million heads of poultry in two farms by February 2023. Phylogenetic analysis shows that the virus clade is 2.3.4.4b, and to the best of our knowledge, this is the first scientific publication reporting this clade in South America.

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