the age distribution of 126 infants and children with disseminated meningococcal disease hospitalized consecutively in houston between january 1977 and june 1979 , and between january 1981 and june 1981 was analyzed and compared with that in the united states as a whole and to that during outbreaks of group b disease in north america and epidemics of group c disease in south america .
C0041703
united states
C0028405
north america