Crepaz N, et al. - Given the significance of calculating national rates of HIV diagnosis, incidence, and prevalence for quantification of disease burden, and for planning and evaluating programs, researchers determined HIV rates among MSM, persons who inject drugs (PWID), and heterosexuals in 2010 and 2015 using proportion estimates of the US population classified as MSM, PWID, and heterosexuals along with census data. In 2015, they identified the estimated HIV diagnosis and incidence rates of 574.7 and 583.6 per 100,000 MSM; 34.3 and 32.7 per 100,000 PWID; and 4.1 and 3.8 per 100,000 heterosexuals. In 2015, they noted the estimated HIV prevalence of 12,372.9 per 100 000 MSM; 1937.2 per 100 000 PWID; and 126.7 per 100 000 heterosexuals. As per data, all three transmission categories displayed a decrease in the HIV diagnosis rates from 2010 to 2015. The highest HIV diagnosis rates were noted for black individuals at both time points. White MSM, MSM aged 13–24 years, PWID overall, and male and female heterosexual individuals displayed a decrease in HIV incidence rates; however, HIV incidence increase in MSM aged 25–34 years.