UH OH: French Riviera sees new case of chikungunya virus. “French health authorities have asked doctors on the Riviera to be on the alert after a second case was detected in the region this weekend of the mosquito-borne chikungunya virus. Two 12-year girls in the town of Frejus have caught the virus that causes fever, headaches and arthritic-type symptoms that leave victims stooped, officials said Sunday. . . . There is no known vaccine or treatment for chikungunya, which has infected millions of people in Africa and Asia and can cause debilitating pain and, in extreme cases, death.” If only we had some way of killing all those mosquitoes before they could spread disease.