What species is thought to have first transmitted the H3N2 influenza virus to dogs in Asia?

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Multiple Choice

What species is thought to have first transmitted the H3N2 influenza virus to dogs in Asia?

Explanation:
Cross-species transmission from birds to dogs gave rise to the H3N2 canine influenza lineage in Asia. Avian influenza viruses, including H3N2 circulating in birds, are the natural reservoir. When dogs came into contact with infected birds or contaminated environments, the virus spilled over and then adapted to replicate and spread among dogs. This bird-to-dog jump explains the origin, with dogs becoming a new host after the initial introduction. The other animals listed are not supported as the original donor for this specific H3N2 strain in dogs.

Cross-species transmission from birds to dogs gave rise to the H3N2 canine influenza lineage in Asia. Avian influenza viruses, including H3N2 circulating in birds, are the natural reservoir. When dogs came into contact with infected birds or contaminated environments, the virus spilled over and then adapted to replicate and spread among dogs. This bird-to-dog jump explains the origin, with dogs becoming a new host after the initial introduction. The other animals listed are not supported as the original donor for this specific H3N2 strain in dogs.

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