In early March, Dr. Barb Petersen, a large-animal vet in Texas, began getting calls from the dairy farms she works with in the Panhandle. Workers there were seeing a lot of cows with mastitis, an ...

Researchers in the US and Denmark took on that task. Their findings, published as a preprint study, show that cows have the same receptors for flu viruses as humans and birds. Scientists fear that ...