The threat of Dengue is looming large in Uttarakhand after three persons died of the vector-borne disease and 30 more new cases were reported.

Three persons from Haridwar district who had tested positive for Dengue died during the past one fortnight, an official statement here said. So far, nearly 352 cases, mostly from Haridwar, have been reported in the hill state. Nearly, 20 patients have been referred to the government Doon hospital, official sources said.