At AHF Wellness Centers, your health comes first. Our patient-centered model provides testing services in a laid back, friendly environment during traditional and nontraditional hours. Our aim is to make STI and HIV testing as accessible as possible. The best way to stop the spread of HIV & STDs is to know your status.STD Basics‧Testing FAQs‧Locations‧Español‧Preguntas Freceuntas‧Houston.