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Cross-neutralization of different HCVpp genotypes with sera obtained from Patient H at the indicated time points. pp were from genotype 1a (H77), 2a (J6CF), 3a (S52), 4a (ED43), 5a (SA13), and 6a (HK). The percentage of neutralization of the genotype 2a pp with serum from patient H taken at year 2 ranged from 41 to 52 in repeat assays.
