Number of people with chlamydia detected is increasing

In 2016, a total of 34,132 people had chlamydia detected. This marks an all time high since monitoring was initiated in 1994.

2016 saw slightly more than 7% more cases of chlamydia than 2015. The increase was seen for both sexes and within nearly all age groups. The increase was not exclusively due to an increase in the number of tests performed from 2015 to 2016, as the number of tested persons only rose by slightly less than 2%.

As in the past, men only accounted for four out of ten detected chlamydia cases. This is not because the men get infected with chlamydia less frequently than women. The reason is that far fewer men than women are tested for chlamydia: Men constitute only 3 out of every 10 persons tested. In the 15-29-year age group that accounts for more than 80% of all detected chlamydia cases, the share of men that tests positive for chlamydia is about one and a half times higher than it is among women.

The clear increase in the incidence of chlamydia is cause for concern as it is a marker for the extent of unprotected sex, which also entails the risk of other sexually transmissible diseases. Furthermore, chlamydia in women can cause pelvic infection, which can lead to infertility in complicated cases. There are therefore ample grounds for further enhanced preventive action, especially among 15-24-year-old men and women. There is a need for enhanced information about safe sex, increased attention to sampling and information about relevant partners in the six months leading up to a positive test.

For more information, please see EPI-NEWS 34/17.


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