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Meningococcal antigen was measured by countercurrent immunoelectrophoresis in the blood and cerebrospinal fluid of 200 patients with group A meningococcal meningitis. Antigen was detected in the blood of 27 (13.5 per cent) patients. These patients had a worse prognosis and a higher incidence of allergic complications, such as arthritis and vasculitis, about 5 days after the start of antibiotic treatment. Antigen was found in the CSF of 129 (67.5 per cent) patients); antigen often persisted in the cerebrospinal fluid despite antibiotic treatment before admission. A combination of immunoelectrophoresis and routine bacteriologic study was used in the diagnosis of 162 (84.8 per cent) patients with meningococcal meningitis. High levels of antigen and a slow antigen disappearance were associated with neurologic damage. The antigen is stable and may be detected from specimens of cerebrospinal fluid dried on filter paper.

Type

Journal article

Journal

Am J Med

Publication Date

06/1975

Volume

58

Pages

823 - 828

Keywords

Antigens, Bacterial, Chloramphenicol, Clinical Trials as Topic, Humans, Immunoelectrophoresis, Length of Stay, Meningococcal Infections, Penicillins, Prognosis, Sulfonamides