The senior flu shot is a stronger version of the regular flu vaccine, made for adults 65 and older. Every province except Quebec funds a free flu shot for this age group this fall, most of them the stronger version. For adults 65 and older, Canada's National Advisory Committee on Immunization (NACI) recommends a high-dose or adjuvanted flu shot over the standard one, when it is available.
There are two kinds, high-dose and adjuvanted (a standard dose with an added immune booster), and which one you are offered for free depends on where you live. Most provincial campaigns open in October.
This guide explains the difference between the two shots, what each province covers for 65 and older in fall 2026, when to book, what the side effects are, and who should check with a doctor first.
What is the difference between a regular flu shot and a senior flu shot?
A senior flu shot is built to get a stronger response from the immune system than a standard shot. It comes in two forms. The high-dose shot (Fluzone High-Dose) contains four times the antigen of a standard shot, 60 micrograms per strain instead of 15. Antigen is the part of the vaccine the immune system learns to recognize. The adjuvanted shot (Fluad) keeps the standard 15 micrograms but adds MF59, an ingredient that boosts the immune response.
NACI's 2026-27 statement puts it this way: high-dose, adjuvanted or recombinant vaccines (a third type NACI also lists) "should preferentially be offered, when available" to adults 65 and older over standard-dose vaccines. NACI does not rank high-dose above adjuvanted or the other way around. No recombinant flu vaccine is available in Canada this season, so in practice the choice is between the two above. If neither is on hand, NACI says to take any available flu vaccine rather than wait.
Why 65 is the line comes down to the numbers. In the 2023-24 season, people 65 and older made up 45% of reported flu hospitalizations and 71% of deaths in Canada (Public Health Agency of Canada FluWatch). Heart health is part of that picture; our guide to heart health after 60 covers that side of the story.
Which provinces cover the senior flu shot this fall?
Nine provinces give adults 65 and older a free flu shot this fall, all nine funded an enhanced version last season, and Ontario funds both kinds. Quebec is the exception, covered in the next section. Here is the picture as of September 8, 2026; several provinces had not yet announced their 2026 product or start date, so those rows show last season's.
| Province | Free for 65+? | Enhanced shot funded for 65+ | Fall 2026 start |
|---|---|---|---|
| Ontario | Yes | Fluzone High-Dose and Fluad, your choice | Not yet announced (last year: Oct 27) |
| Quebec | 75+ expected; 65 to 74 by health condition | Last year: for long-term care residents and 75+ with chronic illness | Not yet announced |
| British Columbia | Yes | Enhanced shot for all 65+ (Fluad last year) | Announced for fall, date pending |
| Alberta | Yes | Fluad | October 19, 2026 |
| Manitoba | Yes | Fluad for 65 to 79; High-Dose for 80+ and care-home residents | Booking opens Sept 28 for October clinics |
| Saskatchewan | Yes | Fluad (High-Dose if Fluad is not suitable) | Not yet announced |
| Nova Scotia | Yes | Enhanced shot for all 65+ (Fluad last year) | Details due in coming weeks |
| New Brunswick | Yes | Fluad | Usually mid-October |
| Newfoundland and Labrador | Yes | Fluad in the community; High-Dose in congregate living (prior program) | Not yet announced |
| Prince Edward Island | Yes | Fluad (High-Dose if allergic to Fluad), last year | Usually early October |
Sources: provincial health ministry pages, August to September 2026; Alberta College of Pharmacy (July 2026); Manitoba Health (June 2026); The Globe and Mail (September 4, 2026). Where a province had not published its 2026 product, the table names last season's.
In every province, community pharmacies give the shot, alongside doctor and nurse practitioner offices and public health clinics. Booking rules differ from one pharmacy to the next, so a quick call saves a wasted trip.
If you pay privately, for example while travelling, prices vary. As one example, a Vancouver pharmacy lists the standard shot at $30 and the high-dose shot at $85 for people paying themselves (June 2026). Vancouver Coastal Health quotes about the same $85 for the private high-dose shot.
Why Quebec is different this year
On September 4, 2026 The Globe and Mail reported that Quebec's Health Department will no longer offer free flu shots to the whole population this fall. That brings it in line with the province's narrower COVID-19 vaccine program. The narrower flu program follows the recommendations of the province's immunization committee.
What that means for older Quebecers, based on the committee's framework: adults 75 and older are expected to remain covered by age, while healthy adults 65 to 74 would not be covered by age alone. People in that group may still qualify through a chronic health condition on the province's list. Quebec had not published its final eligibility list as of September 8. The province's pharmacists' association told the Globe it was too early to say what the shot would cost for people paying out of pocket.
If you are 65 to 74 and live in Quebec, the practical step is to ask your pharmacist whether a condition you already manage puts you on the funded list. The other provinces the Globe reached said they are keeping free flu shots for everyone six months and older.
When to get the flu shot
October or November is the window. Flu activity in Canada usually stays low through summer, rises in the fall and crosses the epidemic threshold (the level public health counts as the season starting) in mid to late November, according to the Public Health Agency of Canada. Protection takes about two weeks to build after the shot, so a dose in October is working before the season usually starts.
Protection is strongest in the first one to three months and fades gradually after that, more noticeably at three to six months in older adults. A 2026 review in the Canada Communicable Disease Report concluded this waning generally does not undermine protection across the season. Seasons have started as early as October.
If you miss the window, get the shot anyway. Flu seasons run about 27 weeks on average and peak in winter, and the vaccine is offered until the season ends. Getting it done early also clears the deck for the rest of the season; our winter safety guide for seniors picks up from there.
What are the side effects of the senior flu shot?
A sore arm for a day or two is the common one, and the stronger shots cause it a little more often than the standard dose. The figures below come from the Health Canada product monographs, which compared each senior shot with a standard shot in adults 65 and older.
| Reaction in adults 65+ | Fluzone High-Dose | Standard dose | Fluad | Non-adjuvanted comparator |
|---|---|---|---|---|
| Sore arm at the injection site | 36% | 24% | 26% | 14% |
| Feeling unwell or tired | 18% | 14% | 6% | 7% |
| Fever | 4% | 2% | 1% | under 1% |
Sources: Fluzone High-Dose and Fluad product monographs, revised April 2025. The two trials measured slightly different things: malaise for Fluzone, fatigue for Fluad, and fever at 37.5°C for Fluzone and 38°C for Fluad.
Reactions usually start within three days and clear within two or three. Serious reactions are rare. The senior shots are inactivated vaccines, so they cannot give you the flu.
Who should not get the senior flu shot?
Very few people need to skip it, but two groups should talk to a doctor first (Canadian Immunization Guide, updated August 26, 2026):
- Anyone who had a confirmed severe allergic reaction (anaphylaxis) to a previous flu vaccine, or to an ingredient in that specific vaccine, should not receive the same vaccine again until an allergy doctor has assessed them.
- Anyone who developed Guillain-Barré syndrome (a rare nerve condition) within six weeks of a previous flu vaccine. This is a precaution, not a ban; a clinician weighs the possible risk of recurrence against the benefit of the shot.
Two things that are not reasons to skip it. Egg allergy, even a severe one, is no longer a barrier: the guide says any age-appropriate flu vaccine can be given at full dose in a regular setting. A minor cold, with or without a low fever, does not require a delay either. Only a serious or moderate-to-severe illness is a reason to postpone until you feel better.
Bring a current list of your medications to the appointment. The pharmacist will ask, and a simple system for keeping that list current, like the ones in our medication reminders guide, makes the conversation quick.
Can you get the flu shot with your COVID-19 and RSV shots?
Yes. NACI says a flu vaccine can be given on the same day as a COVID-19 vaccine, or at any time before or after it, usually in the other arm. Giving the RSV vaccine at the same visit is also acceptable and supported; trials of the high-dose flu shot with the two RSV vaccines found no safety concern.
Two honest notes. Same-day RSV and flu shots may increase short-term effects like fever and arm soreness. And some studies found a lower immune response to the flu shot when given with an RSV vaccine, of uncertain importance. If you would rather space them out, that is a reasonable choice too. Our guide to getting the RSV vaccine in Canada this fall covers who qualifies for that one and where it is free.
Frequently asked questions
How long does the flu shot last?
Protection peaks about two weeks after the shot and holds strongest for one to three months. It fades gradually over the season, more so after three to six months in older adults. It does not last into the next year, and the strains change. That is why the Public Health Agency of Canada recommends a new shot every fall.
Does the flu shot make you sick?
The injected flu vaccines used in Canada are inactivated, so they cannot cause influenza. Some people feel tired or a little unwell for a day or two, and about one in four to one in three adults 65 and older gets a sore arm from the senior shots. A low fever is uncommon and short-lived.
Is there an enhanced flu shot available for seniors in Canada?
Yes. Two are available for adults 65 and older this season: Fluzone High-Dose, which uses four times the standard antigen, and Fluad, which adds an immune-boosting ingredient. Nine provinces funded at least one of them free for everyone 65 and older last season, most have confirmed the same for this fall, and Ontario funds both.
Is the flu shot free in Quebec this year?
Not for everyone. Quebec announced in September 2026 that it will no longer fund flu shots for the entire population. Adults 75 and older are expected to stay covered by age, and adults 65 to 74 may qualify through a chronic condition. Quebec had not published its final list or the private price as of September 8, 2026.
Booking it
Call your pharmacy in the last week of September to ask when the senior shot arrives and whether they book or take walk-ins. If your province offers both kinds, either one is a good choice under NACI's guidance. If you are also planning the RSV shot, the two can share a visit, and our RSV vaccine guide explains who qualifies for that one.
This post is public health information, not medical advice. Your pharmacist or doctor can confirm what is right for you.
