PIERRE MARCHAL / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY PIERRE MARCHAL / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY
Pest control. Spraying pesticides to exterminate mosquitoes during the Chikungunya epidemic on Reunion Island. The Chikungunya virus is an alphavirus, which is transmitted by mosquitoes and causes a rare form of viral fever. Symptoms include a high fever, rash and arthritic joint pain. There is no vaccine for the virus, so mosquito extermination is the principal means of fighting an epidemic. Photographed in January 2006.
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