The people used the pools for washing and preparing food, though they drank from the higher, cleaner streams.

In such cases, sewage water is used to wash food or is consumed.

Simple and effective proper hygiene such as washing hands and food is recommended for control.

'It makes perfect sense to have the fridge next to the sink so you can wash food easily,' he says.

Choose water and sugar-free drinks as often as you can - they help wash acid-producing food from your mouth.

Drinking water, water used to wash food, or irrigation water may be affected.

Kabul had no sewage system, and some Afghans would wash food in the same gullies where others urinated 20 yards away.

But do not wash food from packages labeled triple-washed, to prevent cross-contamination in the home.

Though known to eat putrid and seemingly inedible foods, these storks may sometimes wash food in water to remove soil.

It can wash food out of the stomach too quickly and interfere with your feeling of fullness.