Bird flu is getting worse — but it's not yet "cow flu," experts explain
Additionally, the USDA started mandating that dairy cows have to test negative for bird flu before being shipped across state lines. The news comes after several infectious disease experts have criticized the government for not doing enough testing and being “blind” to the true size of the current outbreak — and after a report published in Emerging Infectious Diseases found that cats died after they were fed raw colostrum from sick cows.