Commonground
Senior Moderator
According to data from the United States Department of Agriculture (USDA) as of November 12, 2026, there have been a
total of 2,307 confirmed highly pathogenic avian influenza (HPAI) detections reported among poultry flocks in the United
States since February 8, 2022. Since the previous update, 7 new detections were reported. In the past 30 days, a total of
34 confirmed HPAI detections have been reported by 18 states, primarily California (7), Montana (3), and Washington (3),
affecting 2.74 million birds. According to data from the USDA as of November 12, 2026, there have been a total of 1,235
confirmed HPAI detections reported among livestock in the United States since March 25, 2024. Since the previous update,
8 new detections were reported. In the past 30 days, a total of 51 confirmed HPAI detections have been reported in
Washington (41), Texas (4), Idaho (2), Indiana (2), Colorado (1), and for the first time among dairy cattle in Oregon (1).
According to data from the United States CDC as of November 5, 2026, there have been a total of 74 confirmed influenza A(H5) cases, including 3 deaths (1, 2, 3), and 7 probable H5 cases reported among humans since the beginning of 2024.The most recent human H5N1 cases (1 fatal) were reported in Yakima County, Washington, among individuals exposed to infected dairy cattle. Most human cases reported in the United States were exposed during commercial agriculture and related operations involving contact with dairy cattle and poultry. According to CDC, the current risk to public health is low and person-to-person transmission has not been documented.
According to data from the Pan American Health Organization (PAHO), as of July 15, 10 countries in the Americas have reported a total of 455 highly pathogenic avian influenza (HPAI) outbreaks among animals during 2026, primarily the United States (301), representing a 25.7% decrease compared to 2025 (612 outbreaks). From 2022-2025, a total of 75 human H5 cases were reported by 5 countries in the Americas, including 2 deaths (both caused by the D1.1 strain that emerged and spread rapidly in North America during the 2024 wild bird migration season).
Data Sources: USDA (11/12/26), USDA (11/12/26), CDC (11/5/26), PAHO (8/26/26)
total of 2,307 confirmed highly pathogenic avian influenza (HPAI) detections reported among poultry flocks in the United
States since February 8, 2022. Since the previous update, 7 new detections were reported. In the past 30 days, a total of
34 confirmed HPAI detections have been reported by 18 states, primarily California (7), Montana (3), and Washington (3),
affecting 2.74 million birds. According to data from the USDA as of November 12, 2026, there have been a total of 1,235
confirmed HPAI detections reported among livestock in the United States since March 25, 2024. Since the previous update,
8 new detections were reported. In the past 30 days, a total of 51 confirmed HPAI detections have been reported in
Washington (41), Texas (4), Idaho (2), Indiana (2), Colorado (1), and for the first time among dairy cattle in Oregon (1).
According to data from the United States CDC as of November 5, 2026, there have been a total of 74 confirmed influenza A(H5) cases, including 3 deaths (1, 2, 3), and 7 probable H5 cases reported among humans since the beginning of 2024.The most recent human H5N1 cases (1 fatal) were reported in Yakima County, Washington, among individuals exposed to infected dairy cattle. Most human cases reported in the United States were exposed during commercial agriculture and related operations involving contact with dairy cattle and poultry. According to CDC, the current risk to public health is low and person-to-person transmission has not been documented.
According to data from the Pan American Health Organization (PAHO), as of July 15, 10 countries in the Americas have reported a total of 455 highly pathogenic avian influenza (HPAI) outbreaks among animals during 2026, primarily the United States (301), representing a 25.7% decrease compared to 2025 (612 outbreaks). From 2022-2025, a total of 75 human H5 cases were reported by 5 countries in the Americas, including 2 deaths (both caused by the D1.1 strain that emerged and spread rapidly in North America during the 2024 wild bird migration season).
Data Sources: USDA (11/12/26), USDA (11/12/26), CDC (11/5/26), PAHO (8/26/26)