Some flu vaccines promise a little more protection
1 of 1
A patient got a flu shot in Jackson, Miss. on Oct. 17, 2012. Certain flu vaccines will guard against four strains of the flu rather than the usual three.
Photos: AVP beach volleyball tournament, July 26
Photos: Nike Four-Ball Championship, July 22
Photos: Island Images: July 2015, Part 2
More Photo Galleries »