TABLE 1.

Cross-reactions of extract antigens/antisera from types and strains to extract antigen/antiserum raised against new GBS type candidate

SerotypeName of strainCross-reactiona
IaO90 (ATCC 12400)b+
8/70 Praghb+
5420/77+
9597/76+
14808/77+
IbH36 (NCTC 8187)b+
SS 618+
79751/75+
10727/78+
10420/76+
II18 RS 21 (NCTC 11079)b
V9 (ATCC 12387)b
319/77
2959/76
8791/77
IIIM 216 (NCTC 11080)b
M 781 USA 27/10-93b
D 136 (ATCC 12403)b
3782/62 Kvittinger
14903/77
IV12351b+
3139 Praghb+
68717 Praghb+
1110 Pragh+
717 Pragh with Ibc antigen+
VSS 1169b+
10/84 Pragh+
H 43+
SS 1168+
2569/79+
VINT6b
10214 Pragh 1981
VII7271b+
1609/76+
6315/76+
VIII130013 Colindaleb
130669 Colindale
Gr. BcB848bPositive reaction with extract antigen, negative reaction with antiserum
BO90R (NCTC 9993)bPositive reaction with extract antigen, negative reaction with antiserum
881 SSI 1964Positive reaction with extract antigen, negative reaction with antiserum
Greenaway 31-10-50Positive reaction with extract antigen, negative reaction with antiserum
  • a +, week cross-reaction detected, removed by absorption; −, no cross-reaction detected.

  • b National reference strain for typing of GBS strains.

  • c Group B.