2011-03-252011-03-254-9-99 17:2000https://hdl.handle.net/1911/41587The origin of the image is Domestic. Watermark Unknown.DrawingDomesticPrevent Dengue Fever,denguefevera00gdenguefevera00g预防登革热；每周定期清洗户内盛水容器清除户外废弃容器寄生源； [Prevent Dengue Fever. Assure that the living environments are free of containers and sites where stagnant water may collect and allow mosquitoes to breed.]HealthPublic Service AdsPrevent Dengue Fevernewspapers [报纸]