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Aseline by age group at enrollment, while Figure 1b shows HSV-2 incidence during follow-up by age group at enrollment. HSV-2, herpes simplex virus type 2. doi:10.1371/journal.pone.0091513.gDiscussionIn this analysis of participants in the iPrEx trial of daily oral FTC/TDF PrEP, we found no association between FTC/TDF and incidence of HSV-2 infection, even after accounting for actual use of FTC/TDF
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Version; however, this finding was not confirmed by ulcers identified during STI examinations and may have included ulcers of nonherpetic etiologies. In contrast to the 51 reduction in HSV-2 incidence among women randomized to use a 1 tenofovir topical gel in CAPRISA 004, [9] our results suggest that tenofovir in daily oral FTC/TDF may reduce the occurrence of ulcers in individuals with HSV-2 in
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Aseline by age group at enrollment, while Figure 1b shows HSV-2 incidence during follow-up by age group at enrollment. HSV-2, herpes simplex virus type 2. doi:10.1371/journal.pone.0091513.gDiscussionIn this analysis of participants in the iPrEx trial of daily oral FTC/TDF PrEP, we found no association between FTC/TDF and incidence of HSV-2 infection, even after accounting for actual use of FTC/TDF
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T among participants living in Peru (46.0 ), Brazil (37.8 ), and Ecuador (37.3 ), with lower prevalence among participants living in Thailand (6.4 ), South Africa (17.6 ), and the United States (27.1 ; P,0.001). Randomization group was not associated with HSV-2 prevalence at baseline (P = 0.44). In multivariable analysis, all factors remained significantly associated with HSV-2 prevalence with the
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Used acyclovir or valacyclovir during study follow-up.HSV-2 prevalenceOf the 2,499 participants, 1383 (55.3 ) tested negative for HSV-2 at baseline, 892 (35.7 ) tested positive, 223 (8.9 ) had indeterminate tests, and one test was not done. Of the 223 with indeterminate tests at baseline, 114 (51.1 ) tested positive for HSV-2 infection at some point during follow-up. Factors associated with testin
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N of cRAI in the past three months being reported more frequently in the placebo arm (P = 0.01). Of the 1,383 participants who tested seronegative for HSV-2 at baseline, 36 (2.6 ) did not contribute person-time to incidence analyses because they were retrospectively found to be HIVinfected at baseline, tested seropositive for HSV-2 at the enrollment visit subsequent to screening, or were lost to f
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T among participants living in Peru (46.0 ), Brazil (37.8 ), and Ecuador (37.3 ), with lower prevalence among participants living in Thailand (6.4 ), South Africa (17.6 ), and the United States (27.1 ; P,0.001). Randomization group was not associated with HSV-2 prevalence at baseline (P = 0.44). In multivariable analysis, all factors remained significantly associated with HSV-2 prevalence with the
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Lcer was identified, and 5.6 had 1 STI examination during which a groin ulcer was identified after HIV seroconversion, and thus after stopping study drug. The proportions with each type of ulcer did not differ between participants in the FTC/TDF arm and participants in the placebo arm. Finally, the iPrEx protocol did not use the HSV-2 test manufacturer's suggested cutoffs for indeterminate (IR