Water can be purified by using a filter, using chemical processes, or by boiling the water.
A balanced diet means eating the right variety of foods in the right amounts. Eating a balanced diet helps us to be fit and healthy.
• Only drink clean water.
• Stay at home if you are unwell.
• Wash your hands regularly, especially before eating or touching your face.
Contagious diseases can be passed from an unwell person to a healthy person by touch or through the air or dirty water. Some communicable diseases are spread by animals