Parachuting cats and crushed eggs the controversy over the use of DDT to control malaria.
The use of DDT to control malaria has been a contentious practice for decades. This controversy centers on concerns over the ecological harm caused by DDT relative to the gains in public health from its use to prevent malaria. Given the World Health Organization's recent policy decisions concerning the use of DDT to control malaria, it is worth reviewing the historical context of DDT use. Ecological concerns focused on evidence that DDT ingestion by predatory birds resulted in eggs with shells so thin they were crushed by adult birds. In addition, DDT spraying to control malaria allegedly resulted in cats being poisoned in some areas, which led to increased rodent populations and, in turn, the parachuting of cats into the highlands of the island of Borneo to kill the rodents, a story that influenced the decision to ban DDT spraying. I focus on this story with the intention of grounding the current debate on lessons from the past.
O'Shaughnessy
Patrick T
PT
Department of Occupational and Environmental Health, University of Iowa, Iowa City, IA, USA. patrick-oshaughnessy@uiowa.edu
D000818:Animals; D000852:Anopheles / Q000145:classification / Q000187:drug effects* / Q000469:parasitology; D001717:Birds; D001893:Borneo / Q000453:epidemiology; D002415:Cats; D003634:DDT / Q000008:administration & dosage / Q000266:history* / Q000633:toxicity*; D004026:Dieldrin / Q000008:administration & dosage / Q000633:toxicity; D017753:Ecosystem; D020387:Food Chain; D001556:Hexachlorocyclohexane / Q000008:administration & dosage / Q000633:toxicity; D049673:History, 20th Century; D006798:Housing; D006801:Humans; D007303:Insect Vectors / Q000187:drug effects / Q000469:parasitology; D007305:Insecticide Resistance; D007306:Insecticides / Q000008:administration & dosage / Q000633:toxicity*; D008288:Malaria / Q000453:epidemiology / Q000469:parasitology / Q000517:prevention & control*; D009032:Mosquito Control / Q000266:history* / Q000379:methods; D011635:Public Health Administration / Q000266:history*; D051381:Rats; D013045:Species Specificity; D014944:World Health Organization
D007306:Insecticides; D001556:Hexachlorocyclohexane; D003634:DDT; D004026:Dieldrin
Ann Trop Med Parasitol. 1962 Apr;56:33-43
13880400
WHO Offset Publ. 1982;(66):1-283
6129760
Science. 1967 May 12;156(3776):821-4
6022229
Bull World Health Organ. 1956;15(3-5):673-93
13404443
World Health Organ Tech Rep Ser. 2006;936:1-62, back cover
16623084
Med Anthropol. 1997 May;17(3):279-96
9311227
Soc Stud Sci. 1978 Aug;8(3):265-85
11610388
Am J Trop Med Hyg. 1983 Mar;32(2):203-11
6340536
Bull World Health Organ. 1963;28(1):136-7
14020537
Am J Trop Med Hyg. 1965 Sep;14(5):816-8
5829143
Can Vet J. 1970 Nov;11(11):215-26
4992437
Environ Health Perspect. 2001 Dec;109(12):A588-92
11748022