Facts about swine influenza
Factsheet on swine influenza in humans
Human infections with swine influenza have been sporadically detected (or at least published in the literature) since the late 1950s.
Questions and answers on the pandemic (H1N1) 2009
What is the influenza A(H1N1)v virus? What is the origin of the 2009 pandemic influenza A(H1N1) virus? What is the difference between the pandemic (H1N1) 2009 and swine influenza?