H5N1 Bird Flu Cases Rise to 70 in US as Poultry Outbreaks Continue and Experts Urge Vigilance

Bird Flu Bulletin: Daily H5N1 Update Friday, August 1, 2025 This is Bird Flu Bulletin: Daily H5N1 Update for Friday, August 1st, 2025. I'm your host, bringing you the top stories and latest developments on the global avian influenza A H5N1 situation. Top stories First, U.S. health officials report that the total number of confirmed human cases linked to poultry and dairy exposures has reached 70 since early 2024, with three reported severe cases in the past month, including one fatality. According to the American Academy of Ophthalmology and recent CDC updates, there is still no evidence of human-to-human transmission, but monitoring remains heightened. Second, a new cluster of H5N1 infections was identified in a commercial poultry flock in the southeastern United States yesterday, the first significant new outbreak in that state in 30 days, based on the New Zealand Institute for Public Health and Forensic Science’s virus intelligence report. Experts emphasize that sporadic infections at the human-animal interface are expected where H5N1 circulates among animals. Third, the World Health Organization has issued an updated case definition for influenza A H5 viruses and continues to classify the risk to the general public as low. However, risk remains low to moderate for occupational exposures, such as farm and poultry workers, and WHO strongly encourages improved biosafety measures. Case numbers Since yesterday, there has been a small increase in reported U.S. infections following identification of two probable cases among farm workers with direct poultry exposure. Globally, the total number of laboratory-confirmed human cases since 2003 has risen to just under 990, according to the WHO. Cambodia saw no new cases overnight, following a spike last month that included seven cases in June alone—an unusual monthly high, per WHO tracking. New guidance and statements CDC and WHO both reaffirm that public health risk is low at this time. The CDC is now integrating H5N1 updates with its routine influenza reporting. WHO urges all countries to step up surveillance, particularly in poultry and dead wild species, and reminds those working closely with birds or livestock to use personal protective equipment and report symptoms quickly. There are still no approved vaccines for H5N1 in humans. Interview Joining us briefly is Dr. Elena Price, an infectious disease specialist: “While the case numbers are not surging, every new infection is a crucial warning. The virus continues to adapt in animal reservoirs. Continued vigilance, fast detection, and strict biosafety on farms are absolutely essential to prevent wider spread.” Looking ahead Tomorrow, officials in several U.S. states are expected to release updated animal surveillance numbers, and the World Health Organization will publish a comparative risk assessment as part of its weekly influenza situation update. There is also anticipation of new guidance on biosafety protocols for dairy and p This content was created in partnership and with the help of Artificial Intelligence AI.