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- Flies[remove]14
- Flies as carriers of disease11
- Public health11
- Health education6
- Eating & drinking5
- Cholera4
- Prevention4
- Vaccination4
- Children3
- Communicable diseases3
- Medicine, Preventive3
- Watermelons3
- Dysentery2
- Food contamination2
- Fruit2
- Hand washing2
- Health and hygiene2
- Health literacy2
- Hygiene2
- Hypodermic syringes2
