Mexican influenza

Etymology
An that seemingly originated from.

Noun

 * 1) The virus pandemic H1N1/09 virus.
 * 2) The influenza caused by influenzavirus H1N1/09.
 * 3) The outbreak of 2009 swine flu pandemic.
 * 1) The influenza caused by influenzavirus H1N1/09.
 * 2) The outbreak of 2009 swine flu pandemic.
 * 1) The outbreak of 2009 swine flu pandemic.