Increase in longevity and amelioration of pesticide toxicity by natural levels of dietary phytochemicals in the honey bee, Apis mellifera.

For the past decade, migratory beekeepers who provide honey bees for pollination services have experienced substantial colony losses on a recurring basis that have been attributed in part to exposure to insecticides, fungicides, or their combinations applied to crops. The phytochemicals p-coumaric acid and quercetin, which occur naturally in a wide variety of bee foods, including beebread and many types of honey, can enhance adult bee longevity and reduce the toxicity of certain pesticides. How variation in concentrations of natural dietary constituents affects interactions with xenobiotics, including synthetic pesticides, encountered in agroecosystems remains an open question.

Evidence base for children affected by HIV and AIDS in low prevalence and concentrated epidemic countries: applicability to programming guidance from high prevalence countries.

As global commitment grows to protect and support children affected by HIV and AIDS, questions remain about how best to meet the needs of these children in low prevalence settings and whether information from high prevalence countries can appropriately guide programming in these settings. A 2007 search for the evidence in low prevalence settings on situational challenges of HIV and AIDS-affected children and interventions to address these challenges identified 413 documents. They were reviewed and judged for quality of documentation and scientific rigor.

Effects of mutual health organizations on use of priority health-care services in urban and rural Mali: a case-control study.

Objective: To examine the effects of a community-based mutual health organization (MHO) on utilization of priority health services, financial protection of its members and inclusion of the poor and other target groups.

Methods: Four MHOs were established in two districts in Mali. A case-control study was carried out in which household survey data were collected from 817 MHO member households, 787 non-member households in MHO catchment areas, and 676 control households in areas without MHOs.

The impact of self-assessment on provider performance in Mali.

Improving the quality of clinical care in developing country settings is a difficult task, both in public sector settings where supervision is infrequent and in private sector settings where supervision and certification are non-existent. This study tested a low-cost method, self-assessment, for improving the quality of care that providers offer in a peri-urban area in Mali. The study was a cross-sectional, case-control study on the impact of self-assessment on compliance with the quality of care standards.