In a follow-up on the cholera epidemic in Yemen, health officials put the number of cases near a half million cases in less than four months, according to the World Health Organization country office in Yemen.

More than 494,000 suspected cholera cases and 1966 associated deaths have been reported in 22 governorates and 298 districts in Yemen since Apr. 27.

LISTEN: Cholera: The disease, the Yemen crisis and the vaccine