11/1/2023 0 Comments 83 t bird![]() 6 However as is the case with the highly pathogenic avian influenza, scientific data do not always support such hypotheses. 3, 5 Avian influenza A (HPAI H5N1 Asian lineage) and West Nile virus infection, well known to affect birds for decades, have been recently observed to affect areas far away from the locations where they were originally identified, generating the hypothesis that migratory birds transported these pathogens to new geographical locations. 2 Certain pathogens are more often isolated in migratory birds in comparison to other animal species 3, 4 and the potential for transport and dissemination of these pathogens by wild birds is of increasing public health concern stimulated by the recent spread of diseases like highly pathogenic Avian influenza A (HPAI H5N1 Asian lineage) and West Nile virus (WNV) infection. 1 This creates the potential for establishment of novel foci of emerging or re-emerging communicable diseases along bird migration routes. ![]() Free-living birds, including migratory species, can become long-distance vectors for a wide range of microorganisms that can be transmissible to humans. ![]()
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