Information, statistics, and treatment guidelines for sexually transmitted diseases (STD) from CDC's Division of STD Prevention
Learn about common and possible STD symptoms and how serious they might be. By Mayo Clinic Staff If you have sex - oral, anal or vaginal intercourse and genital touching - you can get an STD, also called a sexually transmitted infection (STI).
Sexually transmitted diseases, or STDs (sometimes called sexually transmitted infections, or STIs) affect people of all ages, backgrounds, and from all walks of life. In the U.S. alone there are approximately 20 million new cases each year, about half of which occur among youth ages 15-24 years.
Learn the facts about sexual health with articles about puberty, menstruation, infections, and just about everything else you wanted to know, for guys and girls.
What is HIV? HIV is a virus that gradually attacks the immune system, which is our body's natural defence against illness. If a person becomes infected with HIV, they will find it harder to fight off infections and diseases. The virus destroys a type of white blood cell called a T-helper cell and makes copies of itself inside them.
CDC provides leadership for HIV prevention research and surveillance and the development and testing of effective biomedical interventions to reduce transmission and HIV disease progression in the United States and internationally. It also provides national leadership in the development, implementation, and evaluation of evidence-based HIV prevention programs serving persons affected by, or at risk for, infection.
As the only national organization with a constituency that provides frontline STD programs and services, NCSD uses its experiences to enhance reform in the policy making process. NCSD proactively seeks to increase resources for core STD programs and services. NCSD also responds swiftly to efforts to curtail access to services and sexual health information.
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