HIV Prevalence, Testing Policies and Programs by City.

aJurisdiction is Houston/Harris County. Population data are for Harris County.bSince 1999, opt-out HIV testing has been required by Texas law during pregnancy at the first prenatal visit and at delivery. As of 2010, opt-out HIV testing is required during the third trimester. If no record of third trimester testing is found, opt-out testing at time of delivery is required. For all other persons (not incarcerated), general written consent for HIV testing is allowable. Informed consent may be verbal as long as test explanation and consent is documented in patient's medical record. Opt-in versus opt-out approach is not specified.HIV Prevalence, Testing Policies and Programs by City.