You are being redirected to websites outside of Johns Hopkins for informational purposes only. Johns Hopkins is not responsible for any aspect of an external website. IWTK does not control the external websites listed below, and has no responsibility for the reliability or accuracy of the content, and does not endorse the information or its provider.

Education & Testing Information

National Network for Immunization Information

NNii provides up-to-date, science-based information to healthcare professionals, the media, and the public: everyone who needs to know the facts about vaccines and immunization.

Center for Young Women’s Health

The Center is an educational entity that exists to help teen girls and young women, their parents, teachers, and healthcare providers improve their understanding of normal health and development, as well as of spcific diseases and conditions.

Planned Parenthood

Planned Parenthood delivers vital reproductive health care, sex education, and information to millions of women, men, and young people worldwide.

American Sexual Health Association

The American Sexual Health Association is a trusted source of reliable information on sexual health and sexually transmitted diseases/infections.

Centers for Disease Control and Prevention

Arm yourself with basic information about STDs: How are these diseases spread? How can you protect yourself? What are the treatment options? Learn the answers to these questions by reading the STD Fact Sheets.

National HIV and STD Testing Resources

Find free, fast, and confidential testing near you. The National HIV, STD, and Viral Hepatitis Testing Resources website is a service of the Centers for Disease Control and Prevention (CDC). This website provides users with locations for HIV, STD, and hepatitis testing and STD and hepatitis vaccines around the United States.