The latest flu stats from Alberta Health Services show nine more people with influenza died in the last week, for a total of 52 deaths since August.
There have been more than 3,900 confirmed cases of influenza A and B in the province.
More than 1,100 people have been hospitalized with the illness, including 298 in Calgary.
Earlier this week, a new study suggested this year's flu vaccine offered little or no protection against becoming sick enough to require medical care.
The research was based on data from British Columbia, Alberta, Ontario and Quebec.
Dr. Danuta Skowronski, an influenza expert at the British Columbia Centre for Disease Control, said the message people should take from the study is that if they are at high risk of developing pneumonia or getting seriously ill if they contract influenza, they should take other steps to protect their health.
Also on HuffPost