I think it was ibuprofen and it's fairly common that new flus originate in pigs... Pigs can catch human flus and avian flus. humans can normally not catch avian flus, but can catch pig flus. Flu genome is divided into 8 different cassettes that are loaded into the viral capsule... if a cell is infected with multiple flus, you get various different combinations of those cassettes into the capsule... thus making pigs fairly important as an incubator of new strains which possibly combine human & avian genes. And one of the reasons that asia is so important for flus... one of those places in the world where pigs, chickens, and humans still live in close quarters.

But yeah, this flu was fairly harmless. However, no matter how harmless it is... they haven't managed to control it, they don't have a vaccine, blah blah blah... so when the next non-harmless one comes along, hopefully they've learned a bit from this.