Oral PrEP works despite bacterial vaginosis SEATTLE – Bacterial vaginosis will not reduce the effectiveness of dental pre-exposure prophylaxis for HIV prevention, regarding to a study of just one 1,470 ladies in Africa Levitra-och-Cialis.html . Daily dental PrEP with tenofovir supplements was 77 percent effective in safeguarding females with bacterial vaginosis from HIV, and 73 percent effective in ladies who didn’t have BV within the 3-12 months study. The difference had not been significant statistically. Dr. Renee Heffron Daily oral PrEP works well despite having abnormal vaginal microbiota, lead investigator Renee Heffron, PhD, from the department of global health in the School of Washington, Seattle, and her colleagues concluded within a presentation of their findings in the Meeting about Retroviruses & Opportunistic Infections together with the International Antiviral Society.