CDC: Previously Undetected HPAI Cases Likely Show Asymptomatic Spread

The Centers for Disease Control and Prevention (CDC) reported in its Morbidity and Mortality Weekly Report Thursday (Feb. 13) a multi-state survey of veterinarians in the United States found three participants -- about 2% of the sample -- showed evidence of recent infection with highly pathogenic avian influenza (HPAI or H5N1), including two who reported no known contact with animals who had the virus. The report comes as public health advocates raise concerns the U.S. response to HPAI could...