Prevalence of STIs U.S. 2018

In 2018, there were 42.5 million people in the United States who had the human papillomavirus (HPV). In comparison there were only 103,000 people who had sexually acquired hepatitis B. This statistic shows the prevalence (estimated number of infections - new or existing - in a given time) of select sexually transmitted infections in the United States in 2018.

Prevalence of select sexually transmitted infections (STIs) in the United States in 2018 (in thousands)

Characteristic	Number of cases in thousands
HPV	42,500
HSV-2	18,600
Trichomoniasis	2,600
Chlamydia	2,400
HIV (ages 13 & older)	984
Gonorhea	209
Syphilis (ages 14 & older)	156
HBV (ages unavailable)	103

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Release date

January 2021

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Region

United States

Survey time period

2018

Supplementary notes

"The analysis included eight common STIs: chlamydia, gonorrhea, HBV, HSV-2, HIV, HPV syphilis, and trichomoniasis. Chlamydia, trichomoniasis, genital herpes, and HPV accounted for 98% of all prevalent STIs and 93% of all new STIs in 2018."
"Estimates for adults and adolescents ages 15+ unless otherwise stated. HIV and HBV data only represent sexually acquired infections."

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