Decreased serologic response in vaccinated military recruits during 2011 correspond to genetic drift in concurrent circulating pandemic A/H1N1 viruses. oleh Dennis J Faix, Anthony W Hawksworth, Christopher A Myers, Christian J Hansen, Ryan G Ortiguerra, Rebecca Halpin, David Wentworth, Laura A Pacha, Erica G Schwartz, Shawn M S Garcia, Angelia A Eick-Cost, Christopher D Clagett, Surender Khurana, Hana Golding, Patrick J Blair