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:
Influenza A viruses can jump from birds to other species, and the H3N2 strain that caused canine influenza in Asia comes from an avian H3N2 lineage. This spillover from birds to dogs established infection in the canine population, making avian species the source of the original transmission. Other animals like cats, horses, or wild rodents may harbor influenza viruses, but they are not the initial source for this particular H3N2 canine lineage in Asia.

Influenza A viruses can jump from birds to other species, and the H3N2 strain that caused canine influenza in Asia comes from an avian H3N2 lineage. This spillover from birds to dogs established infection in the canine population, making avian species the source of the original transmission. Other animals like cats, horses, or wild rodents may harbor influenza viruses, but they are not the initial source for this particular H3N2 canine lineage in Asia.

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