The discovery of a second variant of the avian influenza virus in Nevada dairy cows has raised significant concerns regarding its transmission and likelihood of causing severe disease in both cows and farmworkers. This variant differs from the one observed last spring, suggesting that cows may be more susceptible to H5N1 than previously understood. While most human cases reported mild symptoms, two severe cases, including one fatality, highlight the potential risks associated with this strain. Experts call for further investigation into the implications for animal and human health.
I thought the bird-to-dairy-cow transmission was an exceedingly rare event. This suggests that we need to re-evaluate our understanding of H5N1's spread among cows.
It increases the risk of severe disease to dairy farm workers infected with exposure to infected animals. This finding suggests this version of the virus might cause more severe disease.
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