Fig. 1. Irradiated pneumococcal vaccine induced antibody titers Fig. 1.Irradiated pneumococcal vaccine induced antibody titers. Irradiated or formalin-treated vaccines were administered intranasally to CD-1 mice (n = 5) with phosphate buffered saline (PBS), cholera toxin (CT), or lipid A at days 0 and 14. Pneumococcal specific immunoglobulin A in bronchoalveolar lavage fluid (BALF) (A) and total immunoglobulin (B) were measured at 5 days after final immunization. Fig. 1.Irradiated pneumococcal vaccine induced antibody titers. Irradiated or formalin-treated vaccines were administered intranasally to CD-1 mice (n = 5) with phosphate buffered saline (PBS), cholera toxin (CT), or lipid A at days 0 and 14. Pneumococcal specific immunoglobulin A in bronchoalveolar lavage fluid (BALF) (A) and total immunoglobulin . . . Clin Exp Vaccine Res. 2015 Jul;4(2):145-158. http://dx.doi.org/10.7774/cevr.2015.4.2.145