Chlamydia infection cases confirmed in Europe 2017, by country

Iceland had the highest notification rate of chlamydia in 2017 with 649.6 cases per 100,000 population, followed by Denmark with a notification rate of approximately 573. Chlamydia is one of the most common sexually transmitted infections (STIs) in Europe, and like any STI it is principally transmitted through unprotected sexual intercourse.

Prevalence of other STIs in Europe

While the UK had the fourth highest rate of chlamydia in Europe, it also had the highest number of cases of gonorrhea and syphilis. The UK had over 49 thousand cases of gonorrhea in 2017, more than the cases in every other European country added together. Furthermore, the UK had 7.8 thousand cases of syphilis, which was roughly three hundred more cases than Germany.

Condom use in Europe

The use of condoms, as well as its application as a contraceptive, can be very highly effective in stopping the transmission of STIs from person to person. In 2018, Finland had the highest prevalence in Europe of women aged 15 to 49 years using the male condom as their main form of contraception with almost 31 percent doing so. Additionally, Spain and the United Kingdom had a 28.4 and 27 percent share respectively of women using the male condom for contraception.

Notification rate of confirmed cases of chlamydia infection in Europe in 2017, by country

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Release date

January 2019



Survey time period


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Statistics on "Sexually transmitted diseases in Scandinavia"

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