दालाय साहारान आफ्रिका, इउरप आरो सा-आमेरिकानिफ्राय एपिदेमिअलजिकेल बिजिरसंफोरा बिथोन होयोदि मोनसे आथोनारि गारायनि नुजाथिनायाव HIVजों सनदेरजानायनि खैफोदा ब्रैगुनफ्राम बारासिन दं।
Epidemiological studies from sub-Saharan Africa, Europe and North America have suggested that there is approximately a four times greater risk of becoming infected with HIV in the presence of a genital ulcer.