Avian Influenza

Avian influenza, also known as "bird flu," is a disease primarily affecting birds caused by influenza viruses. Highly pathogenic avian influenza like H5N1 causes serious illness in birds that can spread rapidly, resulting in high death rates in different bird species and the ability to infect humans.


Use this link to see the current situation report for avian influenza and the resources below for more information.


Recent Updates

  • March 20th, the Minnesota Board of Animal Health reported that a goat in Stevens County tested positive for the same influenza virus affecting poultry. This announcement marked the first U.S. detection in livestock. 
  • March 25th, Vietnam's health ministry confirmed H5N1 in a man's avian flu death. 
  • April 12th, Vietnam reported the country's first human infection with H9N2 avian influenza, and China has confirmed a third human H10N3 avian flu case.
  •  April 24th, the U.S. Department of Agriculture (USDA) announced that lactating dairy cows must be tested before interstate transport.
  • As of April 25th, avian influenza has been detected in dairy cows in 8 states, including Idaho, Kansas, Michigan, New Mexico, North Carolina, Ohio, and Texas, affecting 33 herds. 
  • As of April 26th, the Food and Drug Administration (FDA) found H5N1 avian flu fragments in 1 in 5 retail milk samples, with the highest concentrations in regions where outbreaks in dairy cattle have been reported. Additional testing did not detect any live, infectious virus. These results reaffirm the assessment that the commercial milk supply is safe. 
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