H1N1 is not an airborne virus but spreads locally, person to person, by droplet and touch (uncovered sneezing, coughing or touching of contaminated hands to the eyes or nose). The virus appears to be stable and has not mutated since the first cases were reported in April, 2009. Because this is a new virus, people have not been exposed to H1N1 before and have little or no immunity. Fortunately, most people who have been infected have recovered without complications or the need for medical treatment. However, as with any flu, hospitalizations and occasional deaths from flu complications have occurred. H1N1 is not caused by eating pork or pork products that have been properly cooked. The CDC reports that all of the cases of H1N1 in the United States seem to have been transmitted by human to human contact.