Emerging Infectious Disease ISSN: 1080-6059

Hepatitis C Virus in Blood Donors, Brazil

Kátia Luz Torres

, Adriana Malheiro, Adriana Tateno, Tatiane Amabile de Lima, Laura Patricia Viana Maia, João Paulo Diniz Pimentel, Márcia Poinho Encarnação de Morais, Christiane Santana de Melo Usui, Flavia de Oliveira Braga, Igor Araújo Ferreira Silva, Felicien Vasquez, and José Eduardo Levi

Author affiliations: Fundação de Hematologia e Hemoterapia do Amazonas, Manaus, Amazon, Brazil (K.L. Torres, A. Malheiro, T.A. de Lima, L.P.V. Maia, J.P.D. Pimentel, M.P.E. de Morais, C.S. de Melo Usui, F. Vasquez); Universidade Federal do Amazonas, Manaus (A. Malheiro, F. de Oliveira Braga, I.A.F. Silva); Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil (J.E. Levi)

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Figure

Distribution of hepatitis C virus (HCV) enzyme immunoassay signal-to-cutoff (S/CO) values by recombinant immunoblot assay (RIBA) interpretations among HCV-RNA–positive [PCR (+)] and HCV-RNA–negative [PCR (−)] donated blood samples. Group a differs statistically from all groups b with 95% confidence intervals. The Mann-Whitney test was used to compare the 2 groups. (+), positive; (−), negative; (Ind), indeterminate. *S/CO values outside interquartile intervals; †Kruskal-Wallis test.

Figure. Distribution of hepatitis C virus (HCV) enzyme immunoassay signal-to-cutoff (S/CO) values by recombinant immunoblot assay (RIBA) interpretations among HCV-RNA–positive [PCR (+)] and HCV-RNA–negative [PCR (−)] donated blood samples. Group a differs statistically from all groups b with 95% confidence intervals. The Mann-Whitney test was used to compare the 2 groups. (+), positive; (−), negative; (Ind), indeterminate. *S/CO values outside interquartile intervals; †Kruskal-Wallis test.

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