Infectious Disease Doctor

The germ detective. Antibiotics, outbreaks and the infections nobody else can name, five years of residency after medical school.

Typical pay: $311,000a year
Time to qualify: 11 to 13 yearsafter high school
Demand: Good
Licence needed: Yesregulated job

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Quick answers

How much does an infectious disease doctor make in Canada?

The median pay is about $311,000 a year. Across everyone in the job it runs from about $126,000 at the lower end to about $607,000 at the upper end. The source is listed under Sources at the end of this page.

How long does it take to become an infectious disease doctor in Canada?

11 to 13 years after high school, on the usual route.

What does it cost to become an infectious disease doctor?

$78,000 to $172,000 all in for tuition, fees, exams and kit. Living costs are not counted.

Do you need a licence to work as an infectious disease doctor in Canada?

Yes. It is a regulated job, so you need a licence or registration before you can work.

What is the job outlook for an infectious disease doctor in Canada?

Good demand nationally, from government outlook data. Demand varies by region, so check your area.

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Infectious Disease Doctor salary in Canada

What you earn and what it costs to get there.

What infectious disease doctors make

Median

$311,000

Lower end

$126,000

Upper end

$607,000

Job Bank does not give infectious disease physicians a figure of their own. Its page for infectious disease physicians uses the figure for all medical specialists: a median of about $311,000 a year (low $126,000, high $607,000) for 2023 to 2024. Most doctors in Canada bill the provincial health plan, and published billing figures are gross payments before office and practice costs, not take-home pay. Infectious diseases has no procedures and many salaried academic jobs. It varies by province and by how you bill.

What the health plan pays

About $429,000

Median gross clinical payment, internal medicine, which CIHI groups with its subspecialties such as infectious diseases, 2024 to 2025

CIHI (Canadian Institute for Health Information) counts 14,004 doctors in this group. The middle 60% were paid $219,000 to $726,000. This is billing before office, staff and other practice costs, not take-home pay. Read from CIHI's data tables, downloaded in a browser with Claude in Chrome on 6 November 2026, because cihi.ca refuses our checker.

During residency

$73,000 to $99,000

A year in Ontario from July 1, 2025, in postgraduate years 1 to 5 (PGY1 to PGY5): 3 years of internal medicine, then 2 of infectious diseases

Set by the 2023 to 2026 agreement between PARO (Professional Association of Residents of Ontario) and Ontario's teaching hospitals. Other provinces have their own agreements and pay scales.

Pay by province

About $344,000 in Manitoba

Job Bank's median for all medical specialists in Manitoba, 2023 to 2024, the highest of any province

Quebec is almost the same at about $343,000. Ontario's median is about $296,000 and Nova Scotia's is the lowest, at about $207,000. These cover every specialty, not infectious diseases alone.

What it costs to get there

Undergrad degree (3 to 4 years): $7,000 to $10,000 a year
Medical school, the MD (doctor of medicine), 3 to 4 years: $15,000 to $28,000 a year
MCAT (medical school admission test), applications, interviews: $2,000 to $5,000
Licensing exam (the MCCQE, the national medical exam) and two Royal College exams (internal medicine, then infectious diseases): $1,500 for the MCCQE, plus two Royal College exam fees of several thousand dollars each

Roughly, all in

$78,000 to $172,000

Tuition, fees, exams and kit. Not rent, food or travel

The low end is a three year undergraduate degree at the cheapest domestic tuition, three years at a lower cost medical school, and the exam fees. The high end is a four year degree, four years at an expensive medical school, the MCAT (medical school admission test) with applications and interviews, the MCCQE (the national Canadian licensing exam), and two Royal College specialty exams, first internal medicine and then infectious diseases. Neither figure includes the five residency years, which are salaried, so you earn while you finish training. Most graduates still leave medical school owing $80,000 to $150,000 because living costs sit on top of the tuition counted here.

Typical debt at the end of medical school is $80,000 to $150,000. Five paid residency years help you pay it down.

Benefits

Pension often, if salaried
Many infectious disease doctors hold hospital, university or public health contracts with benefits. Ontario residents are in HOOPP (the Healthcare of Ontario Pension Plan) during training.
Union contract during residency
Provincial residents' associations negotiate pay, call limits and leave.
Malpractice coverage
Through the CMPA (Canadian Medical Protective Association), mostly reimbursed by the province. Fees are low for a non-procedural specialty.
Global work
Infectious disease training travels. Outbreak response, tropical medicine and international health jobs are real options.

How to become an infectious disease doctor in Canada

The exact path from high school to qualified.

The path to becoming an infectious disease doctor, step by step

You become an internal medicine doctor first, then an infection specialist.

1
High school
Grades 11 and 12
Top marks in biology, chemistry, math and English. You need a very high average for a science undergrad.
2
Bachelor's degree
3 to 4 years
Any major works, but microbiology is a natural fit. Keep a GPA (grade point average) above 3.8, volunteer, do research. Write the MCAT (medical school admission test).
3
Medical school, the MD (doctor of medicine)
3 to 4 years
Very hard to get into: most applicants are not offered a place. Classes, then clinical rotations.
4
Internal medicine residency
3 years
Matched through CaRMS (the residency matching service). Hospital wards, the ICU (intensive care unit) and clinics. In year 3 you apply to the subspecialty match.
5
Infectious diseases residency, then certification
2 years
Hospital consults, HIV (human immunodeficiency virus) and tuberculosis clinics, the microbiology lab, infection control and antibiotic stewardship. Pass the Royal College exams to become FRCPC (Fellow of the Royal College of Physicians of Canada) and register with your provincial College of Physicians and Surgeons.

High school courses that help you become an infectious disease doctor

Biology
Bacteria, viruses, fungi and parasites. This is the subject.
Chemistry
How antibiotics work and why they stop working. Required for nearly every pre-med path.
Calculus and functions
Outbreak math and drug dosing.
Geography and history
Where a patient has travelled is often the biggest clue.

Time and money, at a glance

Years after high school: 11 to 13
Med school acceptance rate: Low: most applicants are not offered a place
Total tuition: $66,000 to $152,000 for the bachelor's degree and medical school
Paid while training?: Only during residency, 5 years of it

Heavily regulated

You need a licence from your provincial College of Physicians and Surgeons to practise, and Royal College certification in both internal medicine and infectious diseases. Both are national credentials, so moving provinces is mostly paperwork. Quebec requires working French. Medical microbiology, the lab side of the same field, is a separate Royal College specialty; some doctors train in both.

Quebec routeIn Quebec? The route is different. 3 more cards.

The path in Quebec

In Quebec you apply to medical school straight from CEGEP (public college), and infectious disease training is usually combined with lab microbiology.

1
Finish Secondary V
Age 16 or 17
With Secondary V math (Technical and Scientific, or Science option), chemistry and physics. These are the entry courses for the CEGEP (public college) science program.
2
Science DEC (Diploma of College Studies)
2 years
A 2 year CEGEP (public college) program (200.B1), offered in English at Dawson and the other English colleges. Take the biology and chemistry courses medical schools ask for.
3
Medical school, straight from CEGEP
4 to 5 years
No bachelor's degree needed. McGill and Montréal start with a 1 year preparatory year, Laval and Sherbrooke do not. You need a top R-score (the CEGEP ranking score), the Casper test and interviews.
4
Internal medicine, then a combined program
6 years
Matched through CaRMS (the residency matching service). 3 years of internal medicine, then 3 years that combine adult infectious diseases with medical microbiology, the lab side. Taught in French at Montréal and Laval.
5
Royal College exam and CMQ (Collège des médecins du Québec) permit
End of residency
Pass the Royal College exams. The CMQ, the Quebec college of physicians, then issues your permit and specialist certificate once you show French. A Quebec high school diploma counts.
6
Get a hospital position
Before you start
Every specialist working in a Quebec hospital must hold a spot in its PEM (plan d'effectifs médicaux, the medical staffing plan). The health ministry approves how many each hospital gets.

Medical schools in Quebec

Université de Montréal: 1 preparatory year plus 4 years, in French, in Montreal or Trois-Rivières
McGill University: Med-P preparatory year plus 4 years, in English in Montreal or in French in Gatineau
Université Laval: 4 years (or 4.5 to 5 at your own pace in Quebec City), in French, in Quebec City, Lévis or Rimouski
Université de Sherbrooke: 4 years, in French, in Sherbrooke, Longueuil or Chicoutimi

Montréal and Laval set a minimum R-score (the CEGEP ranking score) of 33 for CEGEP applicants in 2026. McGill's Med-P year is only for recent CEGEP graduates.

Two specialties in one in Quebec

Elsewhere in Canada, infectious diseases and medical microbiology are usually separate residencies. Quebec's French programs train you in both at once. At Université de Montréal the 3 years after internal medicine mix clinic rotations with lab rotations, including infection prevention and antibiotic stewardship, and lead to Royal College certification in both. You can treat patients and also run a hospital microbiology lab.

What helps you get ahead as an infectious disease doctor

Things you don't need, but that help.

Focus areas that shape the job

HIV (human immunodeficiency virus) care
Long-term clinic patients on lifelong treatment. Calm, steady, deeply appreciated work.
Infection prevention and control
Stopping outbreaks inside hospitals. A leadership job with a pager.
Antibiotic stewardship
Policing how the whole hospital uses antibiotics so they keep working.
Public health and outbreak response
Working with provincial or federal public health on epidemics, vaccines and travel disease.

Nice-to-haves before med school

Research or lab experience
Microbiology labs love undergrad volunteers.
Travel and languages
Global health work and travel medicine both reward them. French opens Ottawa, New Brunswick and Quebec programs.
Loving puzzles
This is the most detective-like specialty in medicine.
Calm under pressure
Outbreaks are chaotic. The infectious disease doctor is the one who stays steady.

What being an infectious disease doctor is really like

Day to day, pros and cons, where you'd work.

What an infectious disease doctor does day to day

A stack of hospital consults: a fever after heart surgery, a traveller back from Thailand with chills, a patient in the ICU (intensive care unit) whose antibiotics are not working. You take long histories, check the lab's cultures, look at wounds and X-rays, and pick the drug. Afternoon clinic for HIV (human immunodeficiency virus), hepatitis or tuberculosis patients. A meeting with the infection control team about a hospital outbreak. Call is mostly phone advice, sometimes all night.

The honest pros and cons of being an infectious disease doctor

The good

The most interesting cases in the hospital land on your desk
Salaried academic and public health jobs with pensions are common
Real global travel and outbreak work if you want it
Most infections are curable, and cures feel great

The hard parts

No procedures, so billing depends on consults and visits
Up to 13 years of training after high school
Pandemics put you in the spotlight and on call for months
Antibiotic resistance means some infections now have no good option

Work life

Typical hours: 45 to 55 a week including call
Remote work: Some, phone consults and virtual clinics
Physical demand: Low to moderate
Unionized: Residents yes, attending doctors no

Similar paths

Things nobody tells you about being an infectious disease doctor

Things people don't tell you.

Resistant bugs killed thousands in one year

An expert panel report from the CCA (Council of Canadian Academies), When Antibiotics Fail, found that in 2018 about 26% of infections in Canada resisted the drugs normally used to treat them, and that more than 14,000 deaths that year were linked to resistant infections, 5,400 of them caused directly by the resistance. Infectious disease doctors lead the fight to keep antibiotics working.

SARS remade public health in Canada

In 2003 SARS (severe acute respiratory syndrome) caused 438 probable and suspect cases in Canada and 44 deaths in five months. Most cases spread inside hospitals, and 100 health workers caught it. The outbreak led to the creation of the Public Health Agency of Canada.

Treatment that stops the spread

The Public Health Agency of Canada says HIV (human immunodeficiency virus) cannot be passed on through sex by a person who takes their treatment and keeps the virus below 200 copies per millilitre of blood.

How an infectious disease doctor compares

Every list is built from the same numbers shown above, so you can see where this career sits next to the others.

More health careers in Canada

Doctors first, then the rest of the field. See every career in health.

Where these numbers come from

Last checked November 2026. Pay figures are typical full-time annual amounts in Canadian dollars, based on Government of Canada Job Bank wage data and published salary grids. They vary by province, employer and experience. Tuition is for domestic students. How every figure on this site is sourced and checked.