Pakistan reported a new wild poliovirus type 1 case, while five countries reported cases of vaccine-derived polio.
Sequencing linked the cases to an older H5N1 clade still circulating in India and Bangladesh.
Since the middle of May, 3 Arizona outbreaks have led to the loss of more than 5 million layer poultry.
The results of the non–peer-reviewed research highlight the risk of contracting H5N1 avian flu from unpasteurized dairy products or occupational exposure in dairies.
Buoyed by promising clinical findings, Moderna says it will explore alternatives for late-stage development of the H5 vaccine.
Reports of human H5N1 cases in Cambodia have been on the rise since the end of 2023.
This is the first H5N1 human case reported in mainland China since July 2024.
In other H5N1 developments, the USDA confirms an outbreak at an Arizona layer farm that has more than 2 million birds.
Brazil has reported its first H5N1 outbreak in commercial poultry, which involves the 2.3.4.4b clade.
China has now confirmed five H10N3 cases, which tend to be severe, over the past few years.
