Some pet cats that live on dairy farms were infected with the H5N1 virus by drinking raw milk. But a new published case suggests that death may be averted if infected cats are treated early with antiviral medications, such as Tamiflu, or oseltamivir. Cats are exquisitely sensitive to H5N1; one of the telltale signs that a dairy herd is infected is the presence of dead barn cats. Also during that time, Gomez was treating infected dairy herds around Tulare. On Nov. 6 and 7, the family returned with two more sick cats.