Climate Change Empowering The Spread Of Malaria And Other Tropical Diseases

December 11, 2007 at 4:25 PM Environmental Health
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Climate Change Empowering  The Spread Of Malaria And Other Tropical Diseases
Climate change is having an impact on human health by increasing the number of people exposed to malaria and other diseases, the World Health Organization said Monday at a three-day workshop held at the United Nations Climate Change Conference in Bali, Indonesia, the AP/International Herald Tribune reports. Delegates from almost 190 countries are discussing ways to combat the consequences of global warming.

According to WHO, rising temperatures already have been linked to the deaths of more than one million people worldwide since 2000. Countries, including Nepal and Bhutan, have reported malaria cases for the first time in higher elevations, likely because higher temperatures are increasing the size of mosquito populations, the AP/Tribune reports.

In related news, malaria epidemics in the highlands of Papua New Guinea are "now basically happening every year" as a result of global warming, Ivo Mueller, a scientist at the Papua New Guinea Institute of Medical Research, said recently, the AP/Google.com reports. WHO recorded 4,986 malaria cases in the country's Western Highlands province in 2005, compared with 638 cases in 2000. About 40% of Papua New Guineans live in the highlands, where there used to be "no malaria or low epidemic outbreaks," Mueller said. He said that if predictions of temperature increases of three to five degrees Fahrenheit prove true, "perhaps two million people would go from a low- or no-risk area to considerable risk." Malaria parasites need at least 64 degrees Fahrenheit to develop, but scientists have found that a small rise in temperature can increase significantly the size of mosquito populations, the AP/Google.com reports.

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