Eradicate Four Pests Prevent Sickness and Increase Production 02-074
消灭四害 防病增产 02-074
Anhui Health Department
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A woman writing on a piece of paper; illustrated three types of mosquitoes (Aedes mosquito, malaria mosquito, domestic mosquito), and three diseases that can be trasmitted by each type of mosquitoes respectively (Epidemic Encephalitis B, Malaria, Filariosis Baematica).