Research has shown that only 10 viral particles of H5N1 are sufficient to cause infection in cows. This finding may help explain the difficulties in managing recent outbreaks among U.S. dairy cattle.
The study highlights the minimal viral load required for infection, which poses significant challenges for farmers and veterinarians in controlling the spread of the disease.
H5N1 avian flu has been responsible for numerous influenza outbreaks in dairy cattle across the United States, raising concerns about animal health and agricultural practices.