This was originally derived from pigs, and should technically be referred to as "pig flu"

In the Netherlands it was originally called "pig flu" but is now called "Mexican flu" by the national health institute and in the media.

Swine influenza (also called swine flu, or pig flu) is an infection by any one of several types of swine influenza virus.

J. Gibbs at the Australian National University in Canberra and his colleagues, the virus emerged when a human flu virus acquired a piece of a gene from a pig flu virus.

Matthew Parris called him a "living waxwork"; Suzanne Moore a "zombie gurning ... less popular than pig flu"; and Richard Littlejohn wrote, "If Gordon was a dog, he'd be put down."

ON HER PET CAT Kitty Purry was telling me the other night she remembers when bird flu was in and now pig flu is cool and she wonders when kitty flu is gonna hit.

First described in April 2009, the virus appeared to be a new strain of H1N1 which resulted when a previous triple reassortment of bird, swine and human flu viruses further combined with a Eurasian pig flu virus, leading to the term "swine flu" to be used for this pandemic.