h1n1 influenza a virus(swine flu) and h1n1 influenza a(swine flu)

about h1n1 influenza a(swine flu) , h5n1 influenza a ，know more about influenza a and History of H1N1 Influenza A virus.

After infection to swine flu, when do you become infectious to others?

The new swine flu virus apparently spreads just like regular flu and become airborne if infected person cough or sneeze without covering their nose and mouth, sending germs into the air. The virus is transmitted by saliva or droplets of sneezing from an infected person. You could pick up germs directly from an infected person, [...]

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