Geographic Distribution of HIV/STD Comorbidity – Application of Integrating GIS Into Core HIV Surveillance Activities

The burden of sexually transmitted diseases such as syphilis, gonorrhea and chlamydial infection among persons living with HIV presents public health challenges in terms of individual morbidity but also indicates a significant potential for ongoing HIV transmission. Data from Washington State’s HIV-GIS integration project is used to calculate the incidence of syphilis, gonorrhea and chlamydial infection among persons living with HIV at the census tract level to identify core areas of incidence for intervention planning. Mapping STD incidence at this level of geographic specificity provides a tool for indentifying potential gaps in STD-related diagnostic services for persons living with HIV.