- 2nd form of bird flu detected in US cows Livescience.com
- New bird flu infections in Nevada dairy cattle signal the virus may be here to stay CNN
- 2nd strain of bird flu infects cows for the 1st time: USDA ABC News
- A Second Type of Bird Flu is Circulating in U.S. Ducks—What to Know Scientific American
- USDA confirms spillover of 2nd H5N1 avian flu genotype into dairy cattle University of Minnesota Twin Cities