Definition: Strains of Neisseria meningitidis which are the most common ones causing infections or disease in infants. Serogroup B strains are isolated most frequently in sporadic cases, and are less common in outbreaks and epidemics.
infection: coord IM with MENINGITIS, MENINGOCOCCAL (IM) or, if not meningitis, MENINGOCOCCAL INFECTIONS (IM)
Other names Meningococci, Serogroup B; Meningococcus, Serogroup B