UN approves an updated cholera vaccine that could help fight a surge in cases

​Cholera is an acute diarrhea disease caused by a bacteria typically spread via contaminated food or water. It is mostly seen in areas that have poor sanitation and lack access to clean water. While most people infected with cholera don't experience symptoms, those with severe cases need quick treatment with intravenous fluids and antibiotics. If left untreated, cholera kills about a quarter to half of people infected.