Volume 94 Issue 6 | p. 23 | Concentrates
Issue Date: February 8, 2016

Plague-Carrying Fleas In Madagascar Developing Resistance To Several Insecticides

Disease Control: Scientists find fleas are unscathed by six of 12 commonly used insecticides, and only one insecticide is effective on all of the country’s fleas
Department: Science & Technology
News Channels: Biological SCENE, Environmental SCENE
Keywords: plague, insecticide, flea

Despite decades of work trying to control plague, the illness is still a major health concern in Madagascar. A 2014 outbreak in that country infected more than 335 people at its peak and claimed at least 79 lives, according to the World Health Organization. Plague is primarily transmitted to people from rats via the Oriental rat flea Xenopsylla cheopis. Efforts to keep the disease in check focus on controlling the flea population with insecticides. But . . .

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