This is Bird Flu Update: US H5N1 News Now. I’m your host with the latest key developments on H5N1 avian influenza across the United States as of November 24, 2025.
The Centers for Disease Control and Prevention reports that H5N1, known as bird flu, remains widespread among wild birds and continues to cause outbreaks in poultry and dairy herds nationwide. Within the past week, no new human cases have been confirmed by the CDC. The national total remains at 71 human cases since 2024, with sources of infection traced mainly to dairy cattle herds and poultry operations. There has been one reported H5N1-related death, which occurred in Louisiana. Importantly, health officials underline that there is currently no evidence of person-to-person spread in the United States, and the overall public health risk remains low, according to CDC surveillance.
The CDC and the USDA confirm that fall bird migration has contributed to a seasonal rise in H5N1 detections among wild birds, commercial poultry, and backyard flocks. USDA surveillance finds outbreaks impacting both poultry and livestock, with California among the states still experiencing infections in dairy cattle. As a result, bans on poultry and dairy exhibitions at events remain active in California, according to updates from the California Department of Food and Agriculture. The CDC highlights that over 30,000 people exposed to infected animals have now been monitored, and more than 1,200 have been tested for novel influenza A virus strains since March 2024.
In the latest guidance, the CDC reaffirmed existing protocols for monitoring individuals with animal exposure for 10 days and updated reporting to streamline with broader influenza surveillance. The Council of State and Territorial Epidemiologists released updated case definitions this month, clarifying standards for confirmed, probable, and suspected H5 cases. No changes have been recommended for broad public health measures this week, though strict containment and quarantine measures within affected farms remain in place.
On the research front, Federal agencies are tracking mutations of the virus but have not detected variants in the United States that would indicate increased risk to the general population. The CDC reports that no H5N1 infections were found in clinical surveillance the past week, and virus characterization efforts continue to monitor for any genetic changes.
For listeners wondering what this means for everyday life, public health authorities advise that the risk for most people remains very low. However, those who work with poultry, dairy cattle, or other animals should continue wearing personal protective equipment and report any symptoms of illness after exposure. There is no evidence that properly handled and cooked eggs, poultry, or dairy products pose a risk to consumers.
Comparing the current situation to previous weeks, there has been a slight seasonal uptick in detections among animals due to bird migration. However, human case numbers have remained unchanged and no community transmission has been identified. Surveillance and containment measures remain robust.
Thank you for tuning in to Bird Flu Update: US H5N1 News Now. Come back next week for more updates on the evolving H5N1 situation. This has been a Quiet Please production, and for more, check out Quiet Please Dot A I.
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