This poster is part of a series with the title "Everybody joins the patriotic hygienic campaign to prevent epidemics， Thoroughly defeat the germ warfare of American imperialism, " (彻底打散美帝国主义的细菌战，人人都来参加爱国防疫运动). The slogan on the right-hand side (人人都来参加爱国防病卫生运动) has been cropped.

Various ways to recognize and prevent the spread of disease through flies are depicted.