Chlamydia is the most common bacterial STI in Australia. In 2017, of the 100 775 chlamydia notifications, 73% were among people aged 15-29 years.1
Who and when to test?
Australian STI Management Guidelines recommend opportunistically testing all sexually active people aged <30, as well as anyone who identifies themselves at risk annually.
For more information about who and when to test, see STI/HIV Testing Tool (PDF).