Difference between Influenza A and B
I'll start with a quick answer while I consult the medical library.
Influenza A and B are both respiratory viruses causing seasonal flu, but they differ in host range, genetic variability, and epidemic potential. Influenza A infects humans and animals (birds, pigs, etc.), undergoes both antigenic drift and shift, and is responsible for pandemics. Influenza B infects almost exclusively humans, only undergoes antigenic drift, and causes milder, more predictable seasonal outbreaks.
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Reading File
Now I'll run parallel searches across the medical library and PubMed.
Finding Sources
Searching PubMed
"influenza A" AND "influenza B" AND differences
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