08/29/2012 11:01 EDT | Updated 10/29/2012 05:12 EDT

Saskatchewan health region concerned about vaccine quality after power outage

LA RONGE, Sask. - Several people who received a vaccination in La Ronge, Sask., this summer are being asked to repeat the immunization because a power outage may have affected the quality of the vaccine.

The Mamawetan Churchill River Health Region says the advisory is a precaution and covers 19 people given shots for tetanus, diphtheria and whooping cough at the La Ronge Health Centre.

The vaccinations were done after a prolonged power outage in June.

Andrew McLetchie, the health region's CEO, says refrigeration in the hospital's emergency and acute-care areas was affected when an emergency power supply failed to kick in.

The advisory does not cover people who received vaccinations from the centre's public health office.

McLetchie says the vaccine given to the 19 people won't harm them, but it may not be effective. (CJLR)