Ten children have now been found to be suffering from a severe case of hepatitis over a five-month period including a new case in Alberta.

The increase in infections comes after the European Centre for Disease Prevention and Control reported around 190 unexplained cases of severe hepatitis in kids around the world. 

The state Health Department on Tuesday confirmed the 18 cases of adenovirus at the Wanaque Center for Nursing and Rehabilitation in Haskell, about 30 miles northwest of New York City.