title: Th17 memory cells aren't fooled by sugar-coating.
abstract: Klebsiella bacteria evade humoral immunity by altering their polysaccharide capsular antigens. In this issue of Immunity, Chen et al. (2011) propose a new vaccination strategy, demonstrating that Th17 memory cells can provide cross-protection against multiple serotypes of Klebsiella pneumoniae.
authors.affiliation: Merck, Palo Alto, CA 94304, USA. mandy.mcgeachy@merck.com
authors.forename: Mandy
authors.initials: M
authors.lastname: McGeachy