Opinion: As livestock move around the country, so does H5N1. The U.S. needs real-time tracking of livestock movements
The presence of H5N1 avian influenza virus, better known as bird flu, among dairy cows in Texas — the second largest producer of dairy cattle — was first confirmed in late March. By then, H5N1 had likely been circulating among dairy cows for months. Six weeks later, the nine states responsible for more than one-quarter of U.S. dairy production, which accounts for 3.5% of the U.S.’s gross domestic product, had each reported H5N1 cases in dairy cows and continue to do so.
Many questions remain open about the transmission of H5N1 among dairy cows and about the possibility of the virus adapting to transmit among humans. Even with the best possible outcomes, this outbreak reveals the precipice on which the U.S. rests with respect to livestock diseases.
