title: Septicaemia due to Neisseria lactamica--initial confusion with Neisseria meningitidis.
abstract: Neisseria lactamica, isolated from a baby with septicaemia, was at first thought to be Neisseria meningitidis, possibly acquired in hospital. Extensive investigation of contacts was made until the O-nitrophenyl-D-galactopyranoside reaction proved positive. Distinction between the two species, easily made in this way, is important both in individual patients and in population surveys.
mesh_terms: D001424:Bacterial Infections / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D008297:Male; D009343:Neisseria / Q000302:isolation & purification*; D009345:Neisseria meningitidis / Q000302:isolation & purification; D009598:Nitrophenylgalactosides; D018805:Sepsis / Q000175:diagnosis / Q000382:microbiology*
chemical_list: D009598:Nitrophenylgalactosides