Flu vaccination rates dipped last year in B.C. after problems with the vaccine composition poorly matching the prevalent influenza virus.

Deadlier flu season may be brewing for B.C.

Vaccine mismatch unlikely to impede protection this year, but most dangerous H3N2 strain expected to be dominant

B.C. may be in for one of the deadliest flu seasons in recent years and public health officials are hoping more at-risk residents get vaccinated.

But they’re facing an uphill battle – use of the influenza vaccine dipped to around 35 per cent of the B.C. population last flu season, after peaking a year earlier at nearly 40 per cent.

Dr. Danuta Skowronski, an epidemiologist with the B.C. Centre for Disease Control, said she believes some people skipped the vaccine last year following disclosure that the 2014-15 vaccine gave virtually no protection against the flu strain that ended up circulating.

That mismatch problem doesn’t appear to have resurfaced this year, however.

Skowronski said signs so far indicate the more dangerous H3N2 influenza strain will dominate this flu season and “pack quite a wallop” following a relatively mild H1N1-dominant flu season last winter.

“H3N2 viruses are associated with the greatest disease burden – more intense, severe epidemics, more hospitalizations and deaths,” Skowronski said. “A number of us are concerned that it’s H3N2 we’re likely facing this year. We are already picking up care facility outbreaks due to H3N2 viruses. That is very early.”

The new vaccine formulation includes an H3N2 component that so far appears to be a good match to the strain in circulation so far.

“That can change. That can flip flop. But at least going into the season, that’s looking promising.”

She added that how well the vaccine fits the virus is only one of the factors that drives the effectiveness of flu vaccines.

The H3N2 vaccine effectiveness has traditionally hovered around 50 per cent, she added, so even if it’s well matched against what’s circulated, protection is not assured.

“It doesn’t mean that you are invincible if you get the vaccine, but I’m certainly expecting more decent protection than had I been picking up signals in the circulating virus that it was drifting away from the vaccine component.”

Skowronski said she hopes high-risk people in particular – the elderly and those with chronic medical conditions – aren’t dissuaded from taking the vaccine this time.

“The vaccine can be a life saver and it would really be a tragedy if they chose not to get the vaccine because one year happened to be a miss on the match.”

National statistics show the worst flu season of the last five years – 2014-15 – resulted in nearly 600 deaths across Canada and more than 7,700 hospitalizations from confirmed cases.

But Skowronski cautioned that any statistics of that sort grossly undercount actual deaths because most victims are never tested to confirm a flu virus.

For more information on who is eligible for free flu shots and where to get them see immunizebc.ca and the site’s flu clinic locator.

Just Posted

Sooke hospice services a ‘hidden gem’

Hospice care at Ayre Manor not well known enough, say officials

Student injured after being struck in the EMCS crosswalk

Injuries appear to be non-life threatening, but student was transported to hospital

Proposed Sooke gun law sent back to administration. Again.

Fifth time lucky for firearms and bow bylaw?

VIDEO: ‘Life-saving’ Fix-A-Heart campaign hits $40,000 two weeks in

Canadian Tire on track to surpass 2018 donation of $41,445

‘Not a decision I came to lightly:’ Scheer to resign as Conservative leader

Decision comes after weeks of Conservative infighting following the October election

B.C. SPCA seizes dogs chained up outside among scrap metal, garbage

Shepherd-breed dogs were living in ‘deplorable conditions.’

B.C. plane crash victim identified; witnesses describe ‘explosion’

He was a flight instructor, charter pilot and owned an airstrip before leaving Alberta

BC Hydro offers tips as collisions with power poles increase

Region with the largest spike in collisions was the Lower Mainland at 16 per cent

RCMP must bury three sex mannequins found in Manning Park

Police tasked with ensuring the mannequins were completely disposed of

Mount Washington receives more than 30cm of snow

Last week, the resort announced they were pushing back opening day due to lack of snow.

B.C. seniors need better vaccine protection, advocate says

Home support down, day programs up in annual rating

Most Read