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Distribution of VP2G1Kit assay indexes obtained with samples from 500 Ghanaian and United Kingdom blood donors and 400 Ghanaian children. The distribution of indexes reveals a clear separation between negative (index, <0.9) and positive (index, >1.1) in the United Kingdom blood donor and Ghanaian child populations but not in the Ghanaian adult blood donor population. As a result, the prevalence of antibody to B19 could not be determined in the latter population.
