Chlamydia is a curable sexually transmitted infection caused by the bacterium, Chlamydia trachomatis. It is the most common curable bacterial sexually transmitted infection in the western world and the numbers affected are likely to be underestimated as at least 70% of women and 50% of men who are infected may be asymptomatic.

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Chlamydia in Ireland, 2016

6,893 The number of chlamydia notifications in 2016 making it the most frequently reported STI in Ireland
144.7 The national notification rate per 100,000 population
40% The proportion of chlamydia notifications reported among those aged 20-24 years (age-specific rate 1003.9 per 100,000 population)

Chlamydia 2017