Health authorities are warning WA school leavers to be aware of an increase in sexually transmitted infections as they embark on end-of-school celebrations, with a surge in chlamydia predominantly affecting teenagers in the state.

The Department of Health said the celebrations could lead to increased risk-taking, such as unprotected sex and alcohol or drug use.

Ahead of Leavers, WA Health has launched a Snapchat campaign urging students to pack and use condoms, and also to get tested for sexually transmitted infections (STIs). Loading Facebook content

The state's Sexual Health and Blood-borne Virus Strategy for 2024 to 2030 identified people aged 15 to 19 as a priority population.

The latest data from the department showed chlamydia was the most prevalent STI in the state, where te

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