SHIELD

SHIELD employs mathematical modeling to study the transmission and control of HIV and syphilis across local populations. The models cover 32 U.S. cities, encompassing all Ending the HIV Epidemic (EHE) urban jurisdictions, which account for approximately 60% of both HIV and syphilis diagnoses. SHIELD simulates populations stratified by demographic and behavioral factors to capture population diversity and enables projections of disease spread and intervention impact, supporting evidence-based public health planning and policy decisions.