WeCAHN information library - Fatal Human Case of Highly Pathogenic Avian Influenza A(H5N5) in a Backyard Flock Owner

Western Canadian Animal Health Network Information Library

Infographics, reports, and other western Canadian animal health surveillance information

Back to search results

Emerging issues:

Emerging issues

Animal Type:

Human;
Poultry

Disease Agent:

Influenza

Disease Agent Type:

Virus;
Zoonosis

Organization:

N/A

Region:

United States

Production System:

Smallholding;
Hobby/Pet

Media Type:

Report

Frequency:

Weekly

Link to CDC's MMWR

Fatal Human Case of Highly Pathogenic Avian Influenza A(H5N5) in a Backyard Flock Owner — Washington, November 2025

Share:

This Morbidity and Mortality Weekly Report (MMWR) from the CDC reported on the fatality of a person. "In November 2025, Washington reported the first human case of HPAI A(H5N5) infection worldwide. A positive laboratory result was obtained from a lower respiratory sample after multiple negative upper respiratory sample results; the patient experienced respiratory failure and died 28 days after symptom onset. The public health investigation identified approximately 135 exposed persons."

hpai

|

h5n5

|

fatality

|

backyard

|

small flock