Background Data for on-demand pre-exposure prophylaxis (PrEP) are scarce. We implemented a cohort study to assess its efficacy, safety, and effect on sexual behaviour.
Megacities contain at least 10 million people whose wellbeing largely depends on ecosystem services provided by remote natural areas.
Background Since 2002, Afghanistan has made much effort to achieve universal health coverage.
Background Cancer is a major cause of death in children worldwide, and the recorded incidence tends to increase with time.
Although sexual minority women (SMW) and transgender women have become increasingly visible in recent years and have made progress in achieving civil rights, they continue to face significant levels o
Running is a popular and convenient leisure-time physical activity (PA) with a significant impact on longevity.
Innovative programs introduced in response to the Millennium Development Goals show promise to reduce the global rate of maternal mortality.
Open defecation is a major global health problem. The number of open defecators in India dwarfs that of other states, and most live in rural places.