Every time H5N1 infects a mammal, it has the chance to develop mutations that make it more transmissible
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Except for birds on every continent, seals in Australia, South America, foxes in Canada, as well as poultry, dairy cows and dozens of workers in the US who have come into contact with them, and now the infectious H5N1 bird flu. the virus has jumped to a pig in the US for the first time.
This development is certainly worrying. It gives the virus one of its best opportunities to evolve yet…
