To learn more

Other organizations and websites*

Along with the American Cancer Society, other sources of information include:

American Sexual Health Association (ASHA)
Toll free number: 1-800-227-8922

Offers facts and answers about sexually transmitted infections (STIs). Includes information on preventing the spread of HIV and other STIs.

Centers for Disease Control and Prevention (CDC)
Toll-free number: 1-800-232-4636 (1-800-CDC-INFO)

Offers information about infectious disease prevention and transmission, in English or Spanish.

National Cancer Institute
Toll-free number: 1-800-4-CANCER (1-800-422-6237)

Has information on cancer and viruses as well as vaccines and research.

*Inclusion on this list does not imply endorsement by the American Cancer Society.

No matter who you are, we can help. Contact us anytime, day or night, for information and support. Call us at 1-800-227-2345 or visit

The American Cancer Society medical and editorial content team

Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as journalists, editors, and translators with extensive experience in medical writing.

Last Revised: July 11, 2016

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