OPV strains circulation in HIV infected infants after National Immunisation Days in Bangui, Central African Republic

Table 1 Viruses isolated according to sample collection session and HIV status from the study cohort (53 children).

A = sample collection before NID's: Day 0, B= sample collection between the 1^st and 2^nd round of NID's (Day 15), C= sample collection between the 2^nd and 3^rd round (Day 45), D, E, F, G, H, I, J = sequential sample collection after the 3^rd round at one.

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