... IgG and IgA antibodies in single fractions of bronchoalveolar lavage fluid (BALF, A and C) and induced sputum (IS, B and D) of n = 12 healthy volunteers vaccinated with nasal primary and a nasal ... healthy volunteers vaccifractions ofnasal primary and lavage fluidsystemicA and C) vaccinationline) and IgA antibodies of n = circles, dotted line) in single Sequential Sequential analysis of ... Institute, Langen, Germany) Study Design All subjects received a nasal primary followed by a nasal booster vaccination (day and 21, respectively) At day 42, the second booster was given either nasally...