Kathmandu, May 6 -- Most mountain districts including Humla of Karnali province have reported infection of dengue virus this year.

Infection of dengue virus is not a new thing in Nepal; the disease has already become endemic in the country. But experts say infection before the start of monsoon and before the temperature reaches its peak is concerning.

"So far this year, dengue infections have been reported from 66 districts, including from Humla and some other districts of Karnali Province," said Dr Gokarna Dahal, chief of Vector Control Section at the Epidemiology and Disease Control Division. "We have alerted concerned health agencies of respective districts about the risk of further spread of the viral disease."

Dengue is a viral di...