Dengue fever was the topic of a recent episode of ABC radio's Background Briefing. The current outbreak in northern Queensland represents a tripling of the number of cases presenting in Australia over the past three years. This is a fascinating look at the history of mosquito-borne diseases and the current research being undertaken. It seems that mosquitoes don't serve much purpose in the ecosystem other than to propagate themselves and annoy humans.You can read the transcript or podcast the audio at this website.
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