The control of communicable diseases is a key means by which the Loudoun County Health Department works to ensure the health and well-being of its residents. This is accomplished through: disease surveillance and follow-up of reportable diseases, epidemiologic investigations, administering immunizations for vaccine-preventable disease, and testing and treatment of tuberculosis, sexually-transmitted diseases and HIV.  The department also works to manage environmental public health issues including vector control and food protection.

Loudoun residents are encouraged to contact the Health Department with any questions or concerns about communicable diseases in our county.

For information on specific infections and related information, please click on the link below.

• Communicable Diseases & Related Information A-Z Index
• Loudoun County Epidemiology Bulletins