The Africa Centers for Disease Control now says that cholera outbreaks reported in several African countries could be linked to climate change.
The health body says it has noticed a pattern of environmental changes that has led to a surge in cases.
In Kenya, Acting director general of health Dr. Patrick Amoth, says the situation is likely to worsen especially in drought prone areas.
This is because bacteria tends to multiply faster in warmer areas.
Malawi, Nigeria and Sudan are also facing outbreaks of cholera.
According to Dr. Ahmed Ogwell, the acting director of the Africa Centers for Disease Control, the number of countries affected could go up, due to heavy flooding in several countries in West and Central Africa.
Meanwhile, the World Health Organization has reduced the two-dose cholera vaccine to a single dose due to a supply shortage.
The single dose will offer limited protection.