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2022 U.S. Mpox Outbreak

CDC is updating webpages with the term "mpox" to reduce stigma and other issues associated with prior terminology. This change is aligned with the recent World Health Organization decision.

National HIV, STD, and Hepatitis Testing

More Resources

The following links will take you to federal Web sites that provide information on HIV and AIDS, sexually transmitted diseases (STDs), and viral hepatitis. See below for information centers to answer your questions about prevention and treatment.

Centers for Disease Control and Prevention (CDC)

Information on:

  • HIV and AIDS
  • STDs
  • Viral Hepatitis
  • CDC-INFO answers your questions about disease prevention and health promotion. Representatives are available to answer questions in English and Spanish Monday through Friday, 8 a.m. to 8 p.m. (eastern time)
    • 1–800–CDC–INFO (1–800–232–4636)
    • TTY: 1–888–232–6348

HIV/AIDS basic information, including how HIV is spread, how to protect yourself, resources for the newly diagnosed, and staying healthy.


  • HIV treatment and clinical trials information
  • For answers to your questions about HIV/AIDS clinical trials and treatment in English or Spanish, Monday through Friday, 1 p.m. to 4 p.m. (Eastern Time), contact:
  • 1–800–HIV–0440 (1–800–448–0440)
  • Fax: 1–301–315–2818
  • Outside United States: 1–301–315–2816
  • TTY: 1–888–480–3739

Food and Drug Administration

National Institute of Allergy and Infectious Diseases

Information on causes, transmission, symptoms, testing, and more for: