Which influenza subtype has been associated with canine influenza outbreaks in the United States and has included cats in respiratory disease?

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Prepare for the TEDA Emerging and Exotic Diseases of Animals Exam with our interactive quizzes. Challenge yourself with multiple choice questions and detailed explanations to enhance your learning and boost your confidence for the exam!

Multiple Choice

Which influenza subtype has been associated with canine influenza outbreaks in the United States and has included cats in respiratory disease?

Explanation:
The main idea here is knowing which influenza A subtype has caused canine influenza outbreaks in the United States and has also affected cats. The best fit is H3N2, because this lineage circulated widely in dogs and has been shown to infect cats as well, leading to respiratory illness in both species. H3N8 is an older canine influenza lineage, but it’s less associated with cats. H5N1 is an avian-adapted strain with limited, rare dog/cat involvement in the US, and H1N1 is the human/swine-origin strain not typically linked to canine influenza outbreaks. So the subtype linked to canine influenza outbreaks in the US that has included cats is H3N2.

The main idea here is knowing which influenza A subtype has caused canine influenza outbreaks in the United States and has also affected cats. The best fit is H3N2, because this lineage circulated widely in dogs and has been shown to infect cats as well, leading to respiratory illness in both species. H3N8 is an older canine influenza lineage, but it’s less associated with cats. H5N1 is an avian-adapted strain with limited, rare dog/cat involvement in the US, and H1N1 is the human/swine-origin strain not typically linked to canine influenza outbreaks. So the subtype linked to canine influenza outbreaks in the US that has included cats is H3N2.

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