The latest case has been reported from Rishikesh, Additional Secretary, Health, Yugal Kishore Pant said.
Thirty-four patients have recovered already and the number of active cases stands at 18, he said.
A 56-year-old woman, who was admitted to the AIIMS in Rishikesh on April 22, is the latest patient to have contracted the disease, Dean of hospital affairs U B Mishra said.
She is a resident of Nainital and was brought to the hospital after suffering a brain stroke, he said.
Efforts are on to quarantine around 90 people who had come in contact with her, Mishra said. ALM IJT