A hormone injection for men has been shown to be 96% effective as contraception.

A hormone injection for men has been shown to be a safe and effective method of contraception, but some users in trials reported side effects.

HIV Patient Zero cleared by science

One of the most demonised patients in history – Gaetan Dugas – has been convincingly cleared of reports he spread HIV to the US, say scientists.

Mosquito army released in Zika fight in Brazil & Colombia

Scientists are planning to release millions of modified mosquitoes in urban areas of Brazil and Colombia, in an effort to tackle Zika, dengue and chikungunya viruses.

Baby Lynlee ‘born twice’ after life-saving surgery

A baby girl is “born” twice after she is taken out of her mother’s womb for 20 minutes for life-saving surgery.