The five, who were under treatment at the hospital in Siliguri for the past several days, turned critical yesterday and showed symptoms of frequent convulsions and high fever,he said.
19 persons have died of the mosquito-borne disease since July 1 at the hospital. 31 died since the outbreak of the disease in January first week, the official added.
The hospital authorities recently opened a 16-bed special ward for Japanese Encephalitis patients but with the number of cases on the higher side, the hospital has to refer some patients, afflicted with the disease, to other wards, the official said.