The consequences of severe flooding in Kenya could last beyond the current heavy rains, with environmental damage raising the risks of contamination and disease.

“Many water sources are polluted, and the risk of epidemics spreading throughout the country is increasing,” said Camilla Schynoll, emergency relief coordinator for the German aid agency Welthungerhilfe. “It’s a race against time. The poorest and already vulnerable families in particular urgently need safe shelter and access to basic services such as clean water, food and health clinics.”

The floods are currently causing a fourth cholera outbreak, she said.