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. 2003 Aug;41(8):3915–3918. doi: 10.1128/JCM.41.8.3915-3918.2003

FIG. 1.

FIG. 1.

Dendrogram illustrating the genetic relationship of H. influenzae strains isolated from cases of invasive infections of vaccinated patients (as determined by PFGE) to prevaccination Hib isolates. Strains from vaccinated children: 37398 (b), 2999 (b), 67299 (b), 52901 (b), 42402 (b), 70097 (nontypeable), 90797 (nontypeable), and 38398 (nontypeable). Prevaccination H. influenza type b isolates: 23095, 1494, 2995, 4194, 11194, 4394, 0994, and 3295. The x axis represents percentages of the genetic relationship.