Over 1 million people in the US are living with HIV. To observe trends in HIV and evaluate the effectiveness of prevention interventions, we developed a dynamic compartmental model of disease progression and transmission. The population was stratified by age, sex, circumcision status, race/ethnicity, transmission group, and risk level. People progressed between compartments defined by disease status and care and treatment stage. Outcomes included HIV incidence, prevalence, and care status.
