Flu Shot Season 2026: What Mississauga Residents Need to Know
Ontario's flu vaccine is free for anyone 6 months and older who lives, works or studies in the province — and it takes about two weeks to reach full effect, which is why the best time to get it is before flu activity picks up, not after. Here is the plain-English version for Mississauga: who is eligible, what seniors 65+ should ask for, and where to get it done near Square One.
Quick answer
Ontario's flu shot is free for everyone 6 months and older who lives, works or goes to school in the province — no health card required. Adults 2 to 64 can get it at a doctor's office, participating pharmacy or public health unit; children under 2 need a doctor, nurse practitioner or select public health unit. Seniors 65+ have three funded options — standard, high-dose and adjuvanted — and Ontario recommends the high-dose or adjuvanted version over standard when it's available, though getting vaccinated matters more than which product you get. The flu and COVID-19 shots can be given at the same visit. Medicare Clinic offers flu shots at our walk-in clinic and on-site pharmacy near Square One. Sources: ontario.ca, peelregion.ca.
Who's eligible, and what it costs
Through Ontario's Universal Influenza Immunization Program (UIIP), the flu shot is free for anyone 6 months of age or older who lives, works or goes to school in Ontario. You do not need to be a Canadian citizen, and you do not need an Ontario health card to get vaccinated (peelregion.ca).
Please note: vaccine programs and eligibility can change year to year, and the exact date Ontario's 2026–27 flu program opens had not been announced as of late August 2026. In recent years it has opened in late October. Check ontario.ca/vaccine-locations for the current start date and participating locations near you, and talk to a health-care provider about your own care. This guide is general information, not medical advice.
Where to get vaccinated in Mississauga
Where you can get your flu shot depends on age (ontario.ca):
| Age group | Where |
|---|---|
| 6 months – under 2 years | Doctor, nurse practitioner, or select public health units only — pharmacies cannot vaccinate this age group. |
| 2 – 64 years | Doctor, nurse practitioner, participating pharmacies, or some public health units. |
| 65 years and older | Doctor, nurse practitioner, participating pharmacies, or local public health units. |
At Medicare Clinic near Square One, flu shots are available through our walk-in clinic and our on-site pharmacy, Main Drug Mart — call ahead to confirm current supply before you come in.
The 3 flu vaccine options for seniors 65+
If you're 65 or older, Ontario funds three different flu vaccines, and they are not interchangeable in effectiveness (ontario.ca):
Standard-dose vaccine
The regular flu shot given to all age groups (brand names include Fluzone and Flucelvax).
High-dose vaccine (Fluzone High-Dose)
Contains four times the antigen of the standard dose, designed to produce a stronger immune response in older adults.
Adjuvanted vaccine (Fluad)
A standard-dose vaccine with an added ingredient (adjuvant) that also boosts the immune response in older adults.
Ontario and the National Advisory Committee on Immunization (NACI) recommend offering the high-dose or adjuvanted vaccine over the standard dose for adults 65+, when available — there is no preference between the two enhanced options. That said, official guidance is clear: “do not delay vaccination to wait for a particular product.” If your pharmacy or clinic only has the standard dose in stock the day you go in, getting vaccinated still matters more than which formulation you receive.
Who's at higher risk from the flu
Everyone benefits from the flu shot, but it matters most for people more likely to develop complications (ontario.ca):
- Adults 65 years of age and older
- Pregnant individuals
- Children 6 months to 4 years old
- First Nations, Métis and Inuit communities
- People with underlying conditions — heart disease, diabetes, cancer, or a weakened immune system
If you or a family member falls into one of these groups, it's worth booking early rather than waiting for the first cold snap.
Why timing matters
The flu vaccine takes about two weeks to reach full effect, which is why Ontario recommends vaccination in early fall — before flu activity typically rises through the winter (ontario.ca). Getting your shot as soon as it's available near you gives your immune system a head start, rather than playing catch-up once flu is already circulating in Mississauga.
Getting your flu shot and COVID-19 shot together
You don't need two separate appointments: Peel Public Health confirms the flu vaccine and COVID-19 vaccine can be given at the same visit (peelregion.ca). If you're due for both, ask your provider to do them in one trip.
Before-the-season checklist
- Check ontario.ca/vaccine-locations for this season's start date and pharmacies near you.
- If you or a family member is 65+, ask specifically whether the high-dose or adjuvanted vaccine is in stock.
- Book the flu shot and a due COVID-19 booster in the same visit if you're eligible for both.
- Don't wait for symptoms in the household — the shot needs about two weeks to take effect.
- Save the clinic's number — (905) 848-4844 — for when the first cough of the season shows up anyway.
Frequently asked questions
Who is eligible for a free flu shot in Ontario?
Anyone 6 months of age or older who lives, works or goes to school in Ontario can get a free flu shot through the Universal Influenza Immunization Program (UIIP). You do not need an Ontario health card to get the vaccine. Source: ontario.ca.
Where can I get a flu shot in Mississauga?
For ages 2 to 64, flu shots are available at doctors' offices, nurse practitioners, participating pharmacies and some public health units. Children 6 months to under 2 years can only be vaccinated by a doctor, nurse practitioner or select public health units, not a pharmacy. Adults 65 and older can go to a doctor, nurse practitioner, participating pharmacy or local public health unit. Source: ontario.ca.
What flu vaccine should seniors 65 and older get?
Ontario funds three options for adults 65+: a standard-dose vaccine, a high-dose vaccine (Fluzone High-Dose) and an adjuvanted vaccine (Fluad). Ontario and NACI recommend offering the high-dose or adjuvanted vaccine over the standard dose for this age group when available, with no preference between the two. The most important thing is getting vaccinated — do not delay to wait for a specific product. Source: ontario.ca.
Can I get my flu shot and COVID-19 vaccine at the same time?
Yes. Peel Public Health confirms the flu and COVID-19 vaccines can be given at the same visit. Source: peelregion.ca.
How long does it take for the flu shot to work?
The flu vaccine takes about two weeks to reach full effect, which is why Ontario recommends getting vaccinated in early fall, before flu activity typically picks up. Source: ontario.ca.
Who is at higher risk from the flu?
Adults 65 and older, pregnant individuals, children 6 months to 4 years old, First Nations, Métis and Inuit communities, and people with underlying conditions such as heart disease, diabetes, cancer or a weakened immune system are at higher risk of flu complications. Source: ontario.ca.
Can I get a flu shot at Medicare Clinic without an appointment?
Yes, Medicare Clinic's walk-in clinic near Square One offers flu shots alongside same-day sick visits, and our on-site pharmacy, Main Drug Mart, can also administer the vaccine. Call ahead to confirm current supply.