Multiple choice general knowledge

Which virus causes swine flu

  1. H1N1

  2. dsDNA

  3. ssH1

  4. H1S1
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Swine flu is primarily caused by the H1N1 strain of the Influenza A virus. The name refers to its origin in pigs. Other options like dsDNA describe a type of viral genome, while H1S1 and ssH1 are not recognized designations for this virus.

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