Sexually Transmitted Diseases

The Chester County Health Department offers confidential testing for HIV and STD's on a walk-in basis at no charge to you. No appointment is necessary.Testing is offered for the following diseases:

Are you at risk?

STD Wizard Online RISK Calculator

Are you HIV negative but at risk for HIV?

If you are HIV negative but at risk for HIV, consider PrEP, or pre-exposure prophylaxis. PrEP is daily medicine that can reduce your chances of becoming affected by HIV. PrEP is approved by the Federal and Drug Administration (FDA) and has been shown to be safe and effective at preventing HIV infection.

PrEP 101 (English and Spanish)
Need PrEP?
Find a PrEP Provider

Disease Information



Clinic Notice

  1. Due to the COVID-19 Pandemic, the Chester County Health Department Immunization and STD/HIV clinics are closed.

    TB services are limited to an emergency, referral-based process at this time. If you have questions or concerns, please call 610-344-6225. Thank you.