Get vaccinated-- This year's vaccine protects against three viruses: the 2009 H1N1 (swine) flu virus, the H3N2 virus, which often causes high rates of pneumonia and death, and an influenza B virus. But many people arenâ€™t sold on getting the vaccine. A recent Consumer Reports survey of 1500 U.S. adults shows that only 37% plan on getting vaccinated. Dr. Williams suggests, like the CDC, everyone over the age of six months get the vaccination. The vaccine is roughly 70 to 90% effective for healthy adults.