A person may give a std to a baby.Logical formLearned from2 sentences. (Risk factors) can be for std.Logical formLearned from2 sentences. Protection can be from some stds.Logical formLearned from2 sentences. Stds may be associated with a number of adverse outcomes.Logical formLearned from2 sentences. Some stds may spread into an uterus.Logical formLearned from2 sentences. Someone may have a std.Logical formLearned from2 sentences. Treatment can be for a std.Logical formLearned from2 sentences. A person may be exposed to stds.Logical formLearned from2 sentences. Stds may play a role.Logical formLearned from2 sentences. (Std rates) can be high.Logical formLearned from2 sentences. Levels of stds may be expected.Logical formLearned from2 sentences. (Std services) can be effective.Logical formLearned from2 sentences. Persons can be with a history of stds.Logical formLearned from2 sentences. Stds can be concurrent.Logical formLearned from2 sentences. Vaginosis can be a std.Logical formLearned from2 sentences.