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Sexually Transmitted Infections is the world's longest running international journal on sexual health. It aims to keep practitioners, trainees and researchers up to date in the prevention, diagnosis and treatment of all STIs and HIV. The journal publishes original research, descriptive epidemiology, evidence-based reviews and comment on the clinical, public health, translational, sociological and laboratory aspects of sexual health from around the world. It also publishes educational articles, letters and online material such as podcasts. STI is an official journal of the British Association of Sexual Health and HIV and the Australasian Chapter of Sexual Health Medicine.