Bird flu found to evolve rapidly, infecting more hosts and finding ways to spread more effectively

Although the avian flu (H5N1) virus may not be making the news as frequently, it is still working hard behind the scenes, attempting to evolve into more and more effective versions. Since the highly pathogenic avian flu was detected in Canada in 2021, it has led to the infection of over 180 million domestic birds in Canada and the United States. New evidence published in Science Advances, indicates that the H5N1 virus has been intermixing with low-pathogenicity avian influenza viruses (LPAIVs) to expand its host options and geographical range.

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