Aiden Caldwell Februari 25, 2025 CANCER PREVENTION, CLINICAL TRIALS, DISEASE PREVENTION, EPA, HARRIS COUNTY, HEALTH DEPARTMENT, HOUSTON, HPV VACCINE, JACKIE MEDCALF, MCGINNES INDUSTRIAL MAINTENANCE CORP, MEDCALF, MEDICINE, NORTH AMERICA, RESEARCH, SAN JACINTO, SAN JACINTO COMMUNITY CENTER, SUPERFUND, TEXAS DEPARTMENT OF STATE HEALTH SERVICES, UNITED STATES