Page 137 - Primary Five Science

Amoebic dysentery is caused by amoeba.

Bacillary dysentery is caused by a bacteria

Spread of dysentery

 Drinking contaminated water

 Eating contaminated food

 Houseflies carry germs onto the food and hands.

Control of dysentery

 Boiling water for drinking

 Washing fruits before eating them

 Spraying insecticides to kill houseflies

 Washing hands before eating, serving food

 Wash hands after visiting the toi-

lets.

Cholera

This is an infection of the small intestine by bacteria resulting
to severe diarrhoea and vomiting.

cholera is caused by bacteria

it is spread by houseflies, cockroaches.

It is also spread by drinking contaminated water, eat-

ing contaminated food.

Symptoms of cholera

 Pain around the abdomen

 Severe diarrhoea

 Severe vomiting.

 Fatigue or tiredness