Cuba's health ministry has confirmed a cholera outbreak in Havana with 51 people infected - the biggest incidence of the disease there in decades.

BBC: Cuba confirms 51 cholera cases in Havana

The CDC said that five people who survived Hurricane Katrina in New Orleans died after becoming infected with Vibrio vulnificus, caused by a form of the bacteria that also causes cholera.

CNN: Officials: Chemicals bigger concern than cholera