Malaria control operations. Drainage ditch being dug in the southern USA in the 1920s as part of malaria control operations. The ditch dug by the workers will drain an expanse of standing water, which was acting as a breeding ground for Anopheles quadrimaculatus mosquitoes. Control of mosquitoes helps to prevent or reduce the incidence of malaria, as well as several other mosquito-borne diseases.
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Creative#:
TOP10403287
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
Model Release:
No
Property Release:
No
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No
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DITCHWATERHUMANDRAINAGEDITCHSHOVELSPADEDIGGINGTOOLUSANORTHAMERICACOUNTRYSIDEPONDLAKEDRAININGDIGGINGCONSTRUCTINGTECHNOLOGYENGINEERINGECOLOGYEPIDEMIOLOGYWORKERLABOURERADULTMANMALEBLACKAFRICAN-AMERICANMONOCHROMEBLACK-AND-WHITE20THCENTURY1920SMALARIAMALARIACONTROLOPERATIONSMALARIACONTROLPESTCONTROLVECTORCONTROLDEEPSOUTHMOSQUITOCONTROLDISEASECONTROLWORKERSLABOURERSMENLABORERSRURALUSSTANDINGWATERHEALTHRISKHAZARD1900SUNITEDSTATESNORTHAMERICANPERSONPEOPLESHOVELSSPADESTOOLSIMPLEMENTIMPLEMENTSDRAINAGEFLOWINGWATERTECHNOLOGICALECOLOGICAL
1900S1920S20THADULTAFRICAN-AMERICANAMERICAAMERICANBLACKBLACK-AND-WHITECENTURYCONSTRUCTINGCONTROLCONTROLCONTROLCONTROLCONTROLCONTROLCOUNTRYSIDEDEEPDIGGINGDIGGINGDISEASEDITCHDITCHDRAINAGEDRAINAGEDRAININGECOLOGICALECOLOGYENGINEERINGEPIDEMIOLOGYFLOWINGHAZARDHEALTHHUMANIMPLEMENTIMPLEMENTSLABORERSLABOURERLABOURERSLAKEMALARIAMALARIAMALARIAMALEMANMENMONOCHROMEMOSQUITONORTHNORTHOPERATIONSPEOPLEPERSONPESTPONDRISKRURALSHOVELSHOVELSSOUTHSPADESPADESSTANDINGSTATESTECHNOLOGICALTECHNOLOGYTOOLTOOLSUNITEDUSUSAVECTORWATERWATERWATERWORKERWORKERS