As of May 31, the African country had reported a total of 41,475 cases in 13 of its 18 provinces.

The overall fatality rate stood at 3.8 percent, far above the 1 percent the World Health Organization considers average.

No Health Care Infrastructure

Although current trends showed a decline in most provinces, a daily incidence of around 250-300 cases was still being reported, WHO said.

Cholera is transmitted through contaminated water and is linked to poor hygiene, overcrowding and inadequate sanitation. It can be treated easily, but is a major killer in developing countries.

Angola's public infrastructure, including health care, crumbled during a two-decade civil war that ended in 2002.

About a quarter of the 4 million people in Luanda, the capital, live in shantytowns.