The death toll from from landslides and flooding in Nepal has risen to 101 after rescuers recovered four more bodies.
The United Nations has a "moral responsibility" to help impoverished Haiti end a devastating cholera outbreak some blame on peacekeepers, Secretary-General Ban Ki-moon says.
Lawyers for more than 1,500 victims of Haiti's deadly cholera epidemic said they had served UN Secretary-General Ban Ki-moon with a personal summons to appear in US court.
Hard-hit by a cholera epidemic that started in 2010, Haiti now faces a new threat in the expanding chikungunya virus, authorities said
The intestine of an American cholera victim from the mid-1800s has yielded new clues to the evolution of the deadly bacterium and may help prevent future outbreaks, researchers said Wednesday.
A biological catastrophe may unfold in southern Kazakhstan.
Two people have died and 26 others have been infected by an outbreak of cholera in the city of Gao, northern Mali, a region occupied by hardline Islamist groups.