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Table 3 Diagnostic tests that will be performed in the study

From: The ring plus project: safety and acceptability of vaginal rings that protect women from unintended pregnancy

Facility where the tests will be performed

Tests that will be performed

Laboratory at RU in Rwanda

» Urine analysis for pregnancy using QuickVue hCG (Quidel);

» HIV testing followed RU SOPs, which are based on the Rwandan national guidelines, using DetermineTM

HIV1/2 (Abbott Diagnostic Division, Hoofddorp, The Netherlands) as first test and Uni-Gold HIV (Trinity, Berkeley Heights, New Jersey, USA) as second test when the first test is reactive;

» Wet mount microscopy;

» HSV-2 (HerpeSelect 2 ELISA (Kalon Diagnostics) and syphilis testing assessed with RPR (Spinreact Reactivos, Girona, Spain), followed by TPHA (Spinreact Reactivos, Girona, Spain)

Laboratoire National de Référence, Kigali

» CT/NG molecular testing using the Presto CT/NG kit of Goffin Molecular Technologies, The Netherlands;

» Elisa for HIV (VIRONOSTIKA HIV Uni-Form II Ag/Ab, bioMérieux Marcy l'Etoile, Marcy l'Etoile, France) if the first 2 tests done at the laboratory of RU showed discordant results.