Characterizing herpes simplex virus type 1 and type 2 seroprevalence declines and epidemiological association in the United States
Fig 1
Trends in seroprevalence of HSV-1 (red) and HSV-2 (black) infections in the United States, 1999–2015.
Seroprevalences were standardized with respect to the United States 2010 population; ages 14–49 for HSV-1 and 18–49 for HSV-2. Interpolating curves were estimated using loess.