Document Classification

Section Type: METHODS

Text: Adults randomized to 4 study groups and stratified by age (18-64 and 65 years) received 1 dose of seasonal IIV3 or placebo and 2 doses of 2009-H1N1 vaccine or placebo in one of 4 combinations, i. e., H1N1 + Placebo/H1N1 + Placebo/IIV3 (HP/HP/V3), H1N1 + IIV3/H1N1 + Placebo/Placebo (HV3/HP/P), H1N1 + Placebo/H1N1 + IIV3/Placebo (HP/HV3/P), and IIV3 + Placebo/H1N1 + Placebo/H1N1 (V3P/HP/H).