The USDA released two reports that lay out what has been learned about how H5N1 bird flu is moving among dairy cow herds in the United States.

Fragments of a potentially dangerous bird flu virus that appeared in Austin wastewater, miles from the nearest dairy farm, are sending researchers in a race to find the source.

The Michigan Department of Agriculture and Rural Development presented the potential transmission pathway during a joint state Senate and House committee meeting earlier this week.

The United States Department of Agriculture has detected another case of Highly Pathogenic Avian Influenza in a herd of dairy cattle in Sioux County, Iowa.

Twenty-four companies are working to develop an avian flu vaccine for cattle, as the virus spreads among U.S. dairy herds, Agriculture Secretary Tom Vilsack told Reuters on Wednesday.

Wyoming is now the 10th state where bird flu has infected dairy cows. State Veterinarian Hallie Hasel said the highly pathogenic avian influenza infection was confirmed last Friday, though she didn’t disclose a location.

Avian flu has infected cattle of a third dairy farm in northwest Iowa, according to the state Department of Agriculture and Land Stewardship. All three of the highly pathogenic avian influenza infections — the first in cattle in the state — have been discovered by testing in the past week.

Iowa has seen five bird flu outbreaks since May 28, with all of them occurring in the northwestern corner of the state.