IARN – The extended fall and unusually mild start of winter delayed the southern migration of many bird species, prolonging last year’s H5N1 (avian influenza) season. With birds lingering longer than usual, the virus had an extended window to spread. As January ends on a similarly mild note, migratory birds are already beginning their journey north earlier than expected. This shift raises questions about how the virus will behave in the coming months, as birds return and potentially bring H5N1 back.
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