Table 2.

Cross-reactivity of B. fragilis phages isolated with different strains from urban sewage

Strain for which sensi-tivity was testedCross-reactivity (%) for B. fragilis strains with which phages were isolateda
HSP40RYC4023RYC3234RYC2056RYC3317RYC3318b
HSP401000000 (0.15)
RYC4023880002 (0.30)
RYC323411252819
RYC205600185963
RYC331700307354
RYC331800138733
  • a These percentages indicate the sensitivity of a strain to detect phages isolated with the other. At least 100 plaques were tested as indicated in the text.

  • b Numbers in parentheses are the percentages of sensitivity of strains HSP40 and RYC4023 to 600 plaques isolated on RYC3318 from abattoir sewage.