Stds can be untreated.Logical formLearned from2 sentences. Stds can be (health problem).Logical formLearned from2 sentences. An association can be between stds.Logical formLearned from2 sentences. A (std control program) can be effective.Logical formLearned from2 sentences. A (prevalence rate) may pertain-to stds.Logical formLearned from2 sentences. Impact may be measured by a survey of a (prevalence rate) of stds.Logical formLearned from2 sentences. Presence of stds may increase susceptibility to infection.Logical formLearned from2 sentences. Guidelines can be for management of stds.Logical formLearned from2 sentences. A brochure can be about stds.Logical formLearned from2 sentences. A (std treatment) can be periodic.Logical formLearned from2 sentences. Participants may be tested for stds.Logical formLearned from2 sentences. (Std prevention) may undergo importance.Logical formLearned from2 sentences. Messages can be about stds.Logical formLearned from2 sentences. Diagnoes can be constituted-of-or-filled-with stds.Logical formLearned from2 sentences. Stds may affect young adults with consequences.Logical formLearned from2 sentences.