Objective: To investigate the susceptibility status of the major malaria mosquito in selected rural, semi-urban and urban areas of Nigeria to DDT and Permethrin based insecticides used in vector control. Methods: Two to three day old unfed adult female Anopheles mosquitoes raised from larvae collected across three ecological zones in Nigeria were exposed to 4 % DDT impregnated papers. To find o...

Twenty-eight crossbred 2-year-old ewes were used · to determine the effects of pregnancy and lacta­ tion on the body storage of DDT and dieldrin and on their elimination in milk. Pregnancy did not significantly affect total DDT degradation in ewes, but significantly affected dieldrin metaoo­ lism. Body fat from pregnant animals averaged higher in dieldrin concentration at parturition than did t...

Although the environmentally harmful effects of widespread dichlorodiphenyltrichloroethane (DDT) use became well-known following Rachel Carson's Silent Spring (1962), its human health effects have more recently become clearer. A ban on the use of DDT has been in place for over 30 years, but recently DDT has been used for malaria control in areas such as Africa. Recent work shows that DDT has tr...

BACKGROUND The insecticide dichlorodiphenyltrichloroethane (DDT) has been used for malaria vector control in the northern and eastern parts of the Vhembe District of Limpopo Province, South Africa, since 1945. Bioaccumulation of DDT raises concern because it reportedly affects thyroid function. OBJECTIVE Our objective was to investigate the association between DDT uptake (as reflected in plas...

4,4'-dichlorodiphenyltrichloroethane (DDT) has been re-recommended by the World Health Organization for malaria mosquito control. Previous DDT use has resulted in resistance, and with continued use resistance will increase in terms of level and extent. Drosophila melanogaster is a model dipteran that has many available genetic tools, numerous studies done on insecticide resistance mechanisms, a...

We review the potential impact of DDT on public health in Mexico. DDT production and consumption patterns in Mexico during the last 20 years are described and compared with those in the United States. In spite of the restrictions on DDT use in antimalaria campaigns in Mexico, use of DDT is still higher than in other Latin American countries. We analyzed information from published studies to det...

Introduction The publication of Rachel Carson’s Silent Spring1 in 1962 brought in an increased awareness on the effects of chemicals in the environment and that human health is inextricably linked to the health of the environment. Since then there has been growing scientific concern, public debate and media attention over the possible effects in humans and wildlife that may result from exposure...

The insecticide 1,1,1-trichloro-2,2-bis(4-chlorophenyl) ethane (DDT) has been banned in the United States since 1972, and serum levels in the general population have fallen substantially. Why then would the Journal bother to publish two articles on DDT and health in the present issue (1, 2)? The authors of the papers allude to the significance of their contributions, but their explanations meri...

Dichlorodiphenyltrichloroethane (DDT) has been used extensively to control malaria, typhus, body lice and bubonic plague worldwide, until countries began restricting its use in the 1970s. Its use in malaria control continues in some countries according to recommendation by the World Health Organization. Individuals exposed to elevated levels of DDT and its metabolite dichlorodiphenyldichloroeth...