Multiple choice

Which virus from the following combinations is contagious for human beings?

  1. H5N1

  2. H2N3

  3. H4N1

  4. H5N2
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A Correct answer
Explanation

H5N1 (Avian Influenza) is a subtype of influenza virus that can infect humans, primarily through contact with infected poultry. It has caused human infections and deaths since 1997. The other combinations (H2N3, H4N1, H5N2) are not known to be contagious to humans or are less significant in human transmission.

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