A std can be acute.Logical formLearned from2 sentences. Stds can be among men.Logical formLearned from2 sentences. Materials can be on stds.Logical formLearned from2 sentences. Stds can be curable.Logical formLearned from2 sentences. (Std rates) can be as young persons.Logical formLearned from2 sentences. Sexual networks can be with (std prevalence).Logical formLearned from2 sentences. Use of (latex condoms) may reduce a risk of stds.Logical formLearned from2 sentences. (Latex condoms) may provide for some stds.Logical formLearned from2 sentences. Estimates can be on a number of stds.Logical formLearned from2 sentences. Persons may have stds.Logical formLearned from2 sentences. A discussion can be about stds.Logical formLearned from2 sentences. Condoms may protect against some forms of stds.Logical formLearned from2 sentences. Stds can be in a state.Logical formLearned from2 sentences. Symptoms may indicate a std.Logical formLearned from2 sentences. Some stds can be curable with antibiotics.Logical formLearned from2 sentences.