(a) Use screens to keep out flies, which transfer bacteria from their bodies to food.
(b) Wash fresh fruit and vegetables before using.
(c) Boil for twenty minutes water of doubtful purity.
(4) By keeping the bodies of the family strong and healthy, so that if bacteria gain an entrance they will be resisted and overcome:
(a) Provide well-balanced, nutritious food.
(b) Supply suitable clothing to protect the body.
(c) See that there is an abundant supply of fresh air, night and day.
4. DISPOSAL OF WASTE IN VILLAGES AND RURAL DISTRICTS
(1) Burn all combustible material.
(2) Bury tins, broken dishes, etc.