Table 1.

H. influenzae strains used in this study

Strain Clinical origin Biotype Capsular typeDetection of PCR amplicon of:
hifAhifE
6351Adult cervixIVNTaYesYes
785Adult bloodIVNTYesYes
1595Neonatal bloodIVNTYesYes
4162Adult cervixIVNTYesYes
1216Neonatal cerebrospinal fluidIVNTYesYes
597Neonatal bloodIVNTYesNo
26EUterusIVNTYesYes
RdIIAcapsular type dNoNo
GA2078Invasive disease isolateaYesYes
Eagan (Ela)Cerebrospinal fluidIIbYesYes
770235Cerebrospinal fluidIbYesYes
M43NasopharynxIIbYesYes
ATCC 9007IIcYesYes
AAr176NasopharynxIINTYesYes
AAr73NasopharynxVINTYesYes
AAr49ThroatINTYesYes
AAr91ThroatINTYesYes
86-0295Middle earNTYesYes
F4931Brazilian purpuric feverNTYesYes
F3031Brazilian purpuric feverNTYesYes
F2066Brazilian purpuric feverNTYesYes
  • a NT, nontypeable H. influenzae.