Prince William Health District is operated by the Prince William County Government, Va. Its tuberculosis control department provides various services that include free information and education, tuberculin risk assessment with tuberculin skin testing, and chest X-ray and treatment. The department also provides diagnosis, treatment, case management services for patients. Prince William Health District s sexually transmitted disease control clinic provides detection, screening and treatment, and HIV testing, counseling and education. It also provides dental services to children and teens that include examination, cleanings, dental health education, fluoride treatment, sealant and stainless steel crowns. Its dental services also include root canals, non surgical extraction, periodontal care, and silver and plastic restoration. Prince William Health District also provides vaccines for pandemic and avian influenza and it is located in Manassas, Va.