Composition of the vaginal microbiota of all women included in the study. Patients are separated according to treatment (LAP vs. WO 3191). Visits (1–5) and corresponding data (Nugent score, biofilm status, number of Amsel criteria and pH) are shown above and below. Red arrows indicate BV recurrence. OTUs below 1% abundance are summarized as “others”. LAP = lactic acid pessaries.