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Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Illustration of a fly's life cycle: eggs, larva, pupa to adult fly.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Illustration of a house fly.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Workers covering up soybean paste vats to avoid attracting house flies.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Two men cleaning up the pig sty, a breeding ground for flies.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Farmers piling up manure as organic fertilizer in the field.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

A woman disinfecting the public latrine.

Beijing Sanitation and Antiepidemic Station; 北京市卫生防疫站编文

Beijing Sanitation and Antiepidemic Station; 北京卫生防疫站

Chinese herbal medicine to help treat dysentery.

Beijing Sanitation and Antiepidemic Station; 北京卫生防疫站

Eat warm, freshly cooked food, not cold, stale ones.

Beijing Sanitation and Antiepidemic Station; 北京卫生防疫站

Woman dumping disinfecting power into a water well