TABLE 2.

Reactions between extract antigens (Lancefield method) of three strains studied and the antisera raised against them

Strain against which antiserum was raisedReaction of antiserum to extract of straina:
0884226347214B848 (Gr. B)c
0.1 N0.2 N0.1 N0.2 N0.1 N0.2 N0.1 N0.2 N
0884+++++++++++
0884, 22634b
0884, 7214b
22634++++++++++
22634, 0884b
22634, 7214b
7214++++++++++++++++
7214, 0884b
7214, 22634b
Gr. B (B848)++++++++++++++++++++
  • a −, negative reaction; +, weak reaction; ++, moderate reaction; +++, strong reaction.

  • b The antiserum was absorbed with culture of the second-mentioned strain.

  • c Nontypeable group B strain.