Scope and Contents The poster is in three main sections with multiple frames in each. The left hand section introduces three main types of mosquito (which they note “as the most common among the disease infected insects spread by the American imperialists in Korea and Manchuria”), their life cycle, the diseases they spread, and how they transmit these diseases. The central section is headed “If you want to prevent disease, first exterminate mosquitoes 要防病，先滅蚊”. The central and right hand section then introduce...