A woman holding a fly-swatter aiming for the flies.

A man and a woman taking out bowls sterilized in hot water.

Men and women drinking under a tree.

A mother taking her child to the bathroom.

A girl washing her hands, showing her clean hands to a woman, and telling her friend not to play dirty things.

A boy filling a cup with water from the tap (left); a woman sterilizing a cup for a boy with hot water.

A boy holding his stomach in pain while playing with others.

A woman telling a girl about kids getting sick.

Parasites inside human organs (liver, intestines).

Fruit and vegetable contaminated with parasites in outdoor areas.