H1N1 Flu (Swine Flu)
CDC.gov

The May 8 FluView found that the number of people visiting their doctors with influenza-like-illness is higher than expected in the United States for this time of year. Second, laboratory data shows that regular seasonal influenza A (H1N1), (H3N2) and influenza B viruses are still circulating in the United States, but novel influenza A (H1N1) and "unsubtypable"* viruses now account for a significant number of the viruses detected in the United States.

For further information please visit: http://www.cdc.gov/h1n1flu/?s_cid=h1n1Flu_outbreak_016"