Genetic sequences of H5N1 bird flu viruses collected from severe cases in Louisiana and British Columbia show mutations that may affect the virus’s ability to attach to human cells. The mutations observed in both cases are believed to help the virus adapt to bind to cell receptors in the upper respiratory tracts of humans. While concerns have been raised about the potential for a pandemic H5N1 virus, further research is needed to understand the implications of these mutations. Health officials are monitoring the situation closely and working to generate more genetic sequences to track any additional mutations in the virus.
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H5N1 bird flu in patient shows mutations likely gained post-infection
