Chikungunya foiled by copycat 'virus'

 作者:杜翌膀     |      日期:2019-03-08 01:18:01
A VACCINE that masquerades as chikungunya virus might finally defeat the mosquito-borne disease. In 2006 a single mutation in the virus allowed it to burst out of Africa via a new species of mosquito. Chikungunya now infects about 1 million people a year around the Indian Ocean and causes intense joint pain which can persist for years. It could invade temperate regions as the mosquitoes’ range expands. Gary Nabel of the US National Institutes of Health in Bethesda, Maryland,