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Phylogenetic tree constructed with VP4 cDNA (nt 11 to 887) sequences of P[8] strains of genetic lineages I, II, and III (bootstrap values at the lineage branching points, >95%) isolated in the United Kingdom. Sequences of prototype strains Wa and Ku were obtained from GenBank. Sequences derived from the CSF and paired fecal samples from the patient are represented in boldface type. The calibration bar at top indicates percent homology.
