In regard to malaria, Botswana actually has one of the lowest malaria rates in southern Africa, which is predominantly do to the aridity of the country.

"Southern Europe had little coal, higher malaria rates and lower soil productivity," he said.

Implemented successfully across large areas of the developing world, this effort soon cut malaria rates in numerous countries in Latin America and Asia by 99 percent or better.

Research data shows a significantly strong negative relationship between DDT residual house sprayings and malaria rates.

In his book, Defeat into Victory, he tells of the malaria rates among his units being 70%, largely due to noncompliance by his soldiers with the foul-tasting quinine medication they refused to take.

(Belize did, and malaria rates soared.)

A report commissioned by the government predicted apocalyptic effects from climate change, including droughts, flooding, famine, skyrocketing malaria rates and the extinction of many animal species during the current generation if changes are not made soon.

The pre-war experience and malaria records of Edward Sayers was also helpful to the United States forces in reducing malaria rates during the Guadalcanal Campaign.

Urbana collects 1,100 tons of trash a day and has drained so many of the scummy pools in the slums that the city's malaria rate is going down, its director general, Victor Diogo, said.

This treatment should decrease malaria rates among refugees but does not completely eliminate risk because predeparture treatment with drugs effective against blood-stage parasites do not eliminate liver-stage parasites.