Damsel Quest | Cheryl Estorgio| Filipina Blogger

Influenza A virus subtype H1N1 is an epidemic of a new strain of influenza virus identified in April 2009, commonly referred to as “swine flu.” Cases were first discovered in the U.S. and soon after in Mexico, which had a surge of cases, many of them fatal.
Known as A(H1N1), is a subtype of influenzavirus A [...]