Andrea Williams is seeking authorisation for a class action lawsuit, to allow other victims to make claims along with her.
Williams is seeking $Can600 million (3 billion NOK) in damages charging authorities were negligent in lifting precautionary measures in hospitals too quickly between late April and early May 2003.
The nurse says she still suffers from memory loss, severe fatigue and problems concentrating due to her illness.
She believes she caught SARS from medical personnel who were not wearing masks when she was taken into hospital for surgery.
SARS claimed a total of 44 lives in the Toronto region in last year’s outbreak.