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Use of antiserum agar plates for serogrouping of meningococci.
  1. A Sivonen,
  2. O V Renkonen,
  3. J B Robbins


    A convenient and reliable method for serogrouping meningococci, based on immunospecific precipitation haloes in antiserum-agar plates, is described. It gave concordant results with conventional slide-agglutination in 900 strains of groups A, B or C tested. The antiserum-agar can also be used as a primary isolation medium for detecting nasopharyngeal carriers of a certain serogroup if antibiotics are added.

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