With this, the toll in the region this year due to the disease has risen to 271, health officials said.
While six children died on Tuesday, nine others succumbed today, they said, adding that the victims belonged to Gorakhpur and its adjoining districts of Kushinagar, Siddharthanagar and Sant Kabirnagar.
Seventy-one new patients with symptoms of Japanese Encephalitis (JE) and Acute Encephalitis Syndrome (AES) were admitted to the BRD Medical College and other government hospitals in past two days, they said.
1,272 patients had been treated in the region since January this year and of them, 65 were found positive for Japanese Encephalitis, and the remaining for Acute Encephalitis Syndrome.
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Meanwhile, a team of National Commission for Protection of Child Rights (NCPCR), which had met patients at the hospital wards here over a week back, identified malnutrition and contaminated drinking water as major causes for spread of the disease.
The Commission had issued instructions to provide compensations to the victims and ensure availability of safe drinking water in the affected areas.
Death and disability certificates are being issued and India mark-II hand-pumps are being re-bored in the region, officials said.