• Bird Flu update for 02-20-2025

  • Feb 20 2025
  • Length: 3 mins
  • Podcast

Bird Flu update for 02-20-2025

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  • Summary

  • As of the last 48 hours, the H5 bird flu situation continues to evolve, with significant developments both in the United States and globally.

    In the U.S., the bird flu outbreak remains widespread, affecting wild birds, poultry, and other animals, including dairy cows. As of February 18, 2025, the CDC reported that 12,064 wild birds have been detected with the virus, and 51 jurisdictions have confirmed bird flu in wild birds. The poultry sector has been severely impacted, with 162,586,638 birds affected[1].

    Recent reports indicate that the virus has spilled over into dairy cattle, with six dairy herds in Nevada infected with the H5N1 genotype D1.1, a strain previously only detected in wild birds and poultry. This spillover is significant as it suggests multiple instances of the virus transitioning from birds to cattle, potentially marking a new phase in the outbreak. Experts fear this could lead to the virus becoming endemic in the U.S.[5].

    Human cases of bird flu have also been reported. As of late January 2025, there have been about 67 human cases in the U.S., with one death. The CDC is closely monitoring the situation and working with state health departments to track people with animal exposures. The current public health risk is considered low, but the CDC is using its flu surveillance systems to monitor for any unusual flu activity in people[2][3].

    Globally, other strains of avian flu are also causing concern. In China, two recent cases of H9N2 avian flu have been reported, involving a 72-year-old woman and a 56-year-old woman from Guangdong province. These cases highlight the ongoing circulation of avian flu viruses in parts of Asia, often linked to exposure to poultry or poultry environments[4].

    The USDA and other health agencies continue to emphasize the importance of monitoring and preventing exposure to avian influenza viruses. Recommendations include strict biosecurity measures for those working with animals, particularly in the poultry and dairy sectors, and continuous surveillance to track the spread of the virus[3].

    Overall, while the immediate public health risk from bird flu is currently considered low, the ongoing outbreaks in animals and sporadic human cases underscore the need for vigilant monitoring and preventive measures to mitigate the potential for further spread and severe outcomes.
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