Flu: no sign so far that the human pandemic is spread by pigs.
Vallat
Bernard
B
D000383:Agriculture / Q000191:economics; D000818:Animals; D004196:Disease Outbreaks / Q000706:statistics & numerical data; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology* / Q000635:transmission* / Q000821:virology; D034421:Sus scrofa / Q000821:virology; D013552:Swine / Q000821:virology; D015047:Zoonoses