Table 1.

Results of confirmatory tests on five isolates ofS. pneumoniae with atypical colonial appearances

Isolate no.Optochin zone diam (mm)Bile solubilityResult using:
PCRPneumolysin Western blot16S RNA probe
115a+b++
212+++
314+++
410+++
512+++
  • a −, negative.

  • b +, positive.