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

Controversial Langley condo development earns Advance reporter national accolades

Matthew Claxton’s coverage of the Murrayville House condo saga won a national award.

In pursuit: Langley plays host to popular new dog sport

PHOTOS: Langley hosted second-only Canadian mixed-breed dog trials at Stafford this past weekend.

VIDEO: Self-guided Langley mural walk first of many new tourism experiences

Brochures are available for visitors and residents who want to check out some Langley City wall art.

PHOTOS: Charity Langley car show starts tradition of caring for people with cancer

Ken Johnson wanted an event that to feature his late friend’s vehicle, and it grew into a car show.

Aldergrove Fair Days gets ‘Down on the Farm’

Something for everyone at the 106th annual Aldergrove Fair

VIDEO: Visual recap of Vancouver Island MusicFest

Walk Off The Earth, Passenger, Arlo Guthrie among highlights

Trudeau’s youth council divided over Trans Mountain pipeline purchase

A letter signed by 16 past and present members was made public today, asking the federal government to reverse course

Hulk Hogan reinstated into wrestling Hall of Fame

Hogan had used racial slurs caught on video when talking about his daughter sleeping with a black man

Coco the cat survives horrific house fire wrapped in a blanket

Found in the laundry hours after Chilliwack firefighters douse blaze that destroyed five structures

‘Lava bomb’ through roof of tour boat injures 22 in Hawaii

“An explosion occurred near the shoreline hurling hot lava rocks towards the boat and injuring several passengers”

Aldergrove Youth Soccer registration underway

Kids from U11 to U18 need to register so that teams can be formed, games organized

B.C. teen meets Nicolas Cage

Filming mob movie in downtown Vernon, B.C.

Aldergrove ‘hoops’ boys raise cash

Successful fundraiser for the Aldergrove boys’ basketball team

Otter Co-op’s CEO top of the class

Jack Nicholson receives 2018 B.C. CEO Award in the Large Company category

Most Read