although only 111 ( 69.3 % ) of the strains belonged to the serotypes represented in the licensed pneumococcal vaccine , if related types within the same serogroup are also included 132 ( 82.5 % ) of the strains belonged to the types or groups represented in the vaccine , however , because the vaccine is not recommended for persons aged less than 2 years , from whom 30 strains were isolated , and because 28 strains from those 2 years of age and older were of nonvaccine types or groups , one can presume that 58 ( 36.3 % ) of the 160 bacteremic and meningitic infections would not have been prevented by prior vaccination , even if the vaccine were completely effective .
C2698628
related types
C0205447
one