Ineffective flu vaccine partly responsible for spike in flu deaths

The number of Canadians who died from the flu virus this past winterspiked at547 that's200 more deaths than last flu season.

Health officials say this season's influenzavaccine didn't protect against the strain of the virus that infected many Canadians.

"Obviously, that's not the only factor at play, but with no protection from the vaccine, the death toll will always be higher," said Dr. Gaston Deserres, an infectious disease specialist in Quebec City.

In January, a study based on data from British Columbia, Alberta, Ontario and Quebec found the vaccine offered most people virtually no protection against H3N2 the strain that caused the lion's share of illness this past winter.

• Flu vaccine effectiveness study signals 'no protection' this year in Canada
• Flu vaccine only 23% effective in U.S., even less effective in Canada

"If the vaccine had been protective, we would have seen a smaller number of deaths," Deserres said.

Calls for better flu shots

Every year, a flu vaccine is created based on predictions made by the World Health Organization. The WHOforecasts which strains of the virus are most likely to predominate during flu season, which generally begins around November.

"We hope that next year, we will have a vaccine that will be more effective because the solution to that is proper immunization with the right vaccine," said Quebec Health Minister Gatan Barrette.

For that to happen, Deserres said there needs to be a flu vaccine that will protect against several strains of the flu not just one.

"At this time, we are using technology that was developed in the 1940s and hasn't improved," he said.

Deserres said governments need to push pharmaceutical companies to develop a better vaccine.