Strains of Neisseria meningitidis of a new or unclassified serological group and Neisseria faringis sicca isolated from cases of Waterhouse-Friederichsen syndrome during an epidemic outbreak in Mexico
Cepas de Neisseria meningitidis de grupo serológico, nuevo o no clasificado y Neisseria faringis sicca aisladas decasos del sindrome Waterhouse-Friderichsen de un brote epidemico en México