Jason J. Ong

Preferred service model and other factors associated with pre-exposure prophylaxis willingness among Indonesian men who have sex with men: analysis of PrEP APPEAL survey

BACKGROUND: Men who have sex with men (MSM) are disproportionately affected by HIV in Indonesia. To prevent transmission, there is a need to scale-up HIV prevention, especially pre-exposure prophylaxis (PrEP). This analysis aims to identify the preferred service model and factors...

Trends of sexually transmitted infections among pregnant women in Melbourne, Australia, 2012–2025: a rise in burden of syphilis

BACKGROUND: Sexually transmitted infections in pregnancy threaten both mother and baby, so early detection matters. This study aimed to describe the epidemiology and temporal trends of sexually transmitted infections (STIs) among pregnant women attending a large public sexual hea...

Clearance of Treponema pallidum from oral and anal sites after treatment of secondary syphilis: results from a multi-centre, prospective, cross-sectional study

Background Syphilis is increasing worldwide, and secondary syphilis may represent its most infectious stage. Scarce data exist on Treponema pallidum clearance after treatment. We aimed to determine the frequency and load of T. pallidum mucosal shedding, and time to clearance foll...