Notifications

Government mail service may be affected by the Canada Post labour disruption. Learn about how critical government mail will be handled.

Measles

Learn about measles and how to protect yourself and your family.

Call the Measles Hotline at 1-844-944-3434 for inquiries about your immunization records, symptoms, or to book an immunization appointment – especially if you have a child returning to school or you are planning to become pregnant.

Overview

Measles is an extremely contagious disease that is spread easily through the air when an infected person breathes, coughs or sneezes. Measles is sometimes called rubeola or red measles.

Measles outbreaks are occurring in Alberta and globally.

The best protection against measles is to ensure you are up to date with your immunizations. For those who cannot be immunized (for example: young infants, pregnant people and those with specific immunocompromising conditions), you can reduce the risk of acquiring measles by avoiding communities with significant measles spread, only socializing with people who you know are immunized and avoiding indoor gatherings.

Measles-containing vaccines are provided free of charge for eligible populations through Alberta Health Services public health centres.

Measles cases in Alberta

Measles transmission is currently occurring in Alberta, affecting individuals of all ages – including infants, children and adults. Most reported cases have been in children under 5 years old and those aged 5 to 17 who are not immunized.

Cases have been reported in all zones of the province, with the highest numbers in the north, south and central zones. Due to the number of people in these areas who may not be immune to measles, it’s likely that some cases are going undetected or unreported.

Alberta Health Services shares known public exposure locations for the Edmonton, Calgary, Central and parts of the North Zone. A standing exposure advisory has been issued for the South Zone and areas of the North Zone. Site-specific exposure advisories will no longer be issued in these locations.

All Alberta residents, workers, students and visitors are advised to be aware of the increased risk of measles and ensure their measles immunizations are up to date.

Table 1. Confirmed cases as of 12 pm, December 5, 2025

GeographyCases since last updateTotal cases reported since March 2025Cases no longer communicable*Cases currently known to be communicable (active)**
North37477470
Edmonton040400
Central01321320
Calgary052520
South01,0101,0091
Alberta31,9811,9801

Data note(s):

  • The 'total' number of cases referenced here refers to confirmed cases only.
  • *Period of communicability – the time the other person can transmit measles to another person.
  • Public health will determine period of communicability for individual measles cases for the purposes of contact management.
  • **Active cases does not reflect risk in the community as there may be people with undiagnosed measles, nor does it reflect the number of persons who have been exposed to measles. This estimated number is used for public reporting purposes only.

Table 2. Cases by age group as of 12 pm, December 5, 2025

Age groupCount
<5 years569
5 to 17 years876
18 to 54 years527
55 years and older9
Total1,981

Table 3. Confirmed measles cases currently hospitalized as of 2 pm, December 4, 2025

Currently hospitalizedCases
Non-ICU0
ICU0
Total0

Data note(s):

  • Currently hospitalized data are provided by Alberta Health Services. This data does not include cases reported to Alberta Primary and Preventative Health Services from Indigenous Services Canada.
  • People in hospital who are not yet diagnosed or reported as a confirmed measles case are not included.

About measles

Measles is an extremely contagious disease that is spread easily through the air. The best protection against measles is to ensure you are up to date with your immunizations.

Measles cases are increasing globally, with numerous countries and travel destinations reporting outbreaks including Canada, the United States and Europe.

Measles is a virus that spreads easily through the air when an infected person breathes, coughs or sneezes. Measles is sometimes called rubeola or red measles.

  • Symptoms

    Measles symptoms include:

    • a fever
    • a cough
    • a runny nose
    • red eyes
    • a blotchy, red rash that appears 3 to 7 days after the fever starts. In darker skin colours, the redness may be harder to see or may appear purple or darker than surrounding skin. It typically begins behind the ears and on the face and spreading down to the body and to the arms and legs.
  • Dangers

    Measles can be dangerous because:

    • 1 in 10 people with measles will get middle ear or lung infections
    • 1 in 1,000 people with measles will get encephalitis (swelling of the brain), which can lead to seizures, deafness, or brain damage
    • 1 to 3 of every 1,000 people with measles will die
  • Who is most at risk

    You are at risk of being in contact with measles if you are exposed to an infected person, or if you travel to areas within or outside of Canada where measles is spreading. If you have not had confirmed measles in the past or if you have not been fully immunized against it and you come into contact with the virus, you are at risk of getting measles. Over 90% of people who are not immune to measles and who come into contact with the virus will become infected.

    Those at highest risk of severe complications from measles include:

    • children less than 5 years of age
    • people with weakened immune systems
    • people who are pregnant
  • How measles spreads

    Measles is an extremely contagious disease, spread easily through the air.

    You do not need to be in direct contact with someone who is infected. You can get measles just by passing through a room or location where a person who is infected was up to 2 hours before. The person who is infected does not still need to be there to put you at risk of disease.

    Measles can also be spread through coughing, sneezing, yelling, singing and breathing.

    If you have measles, you can spread the disease before you show any symptoms. Measles can spread starting 4 days before the rash appears until 4 days after the rash appears.

  • Who is protected

    Children in Alberta typically receive their first dose of measles-containing vaccine at 12 months of age, and their second dose at 18 months of age. Children who received 2 doses of vaccine are considered protected.

    Adults born in 1970 or later with a documented history of 2 life-time doses of measles-containing vaccine spaced at least 4 weeks apart, or those who have a history of lab confirmed disease or serological evidence of measles immunity are considered protected.

    Adults born before 1970 are generally considered immune to measles, as measles circulated widely before 1970.

Prevention of measles

  • Immunization information

    Further outbreaks are preventable. The measles-containing vaccines are highly effective at preventing infection and complications from disease. Albertans can protect themselves, their loved ones and people around them by ensuring their measles immunizations are up-to-date.

    Albertans can check their immunization records to confirm they have received the recommended doses of measles-containing vaccine.

    Alberta’s measles-containing vaccine eligibility is outlined in the table below. If you are traveling outside of your city or the province, see the table under the Travel advice section.

    Table 4. Age and vaccine recommendation within Alberta

    Age cohortVaccine recommendations
    Infants 6 months up to and including 11 months of age living in Central, North and South Zones.1 dose of MMR vaccine
    Children 12 months up to and including 17 years of ageRoutine schedule is 2 doses of measles-containing vaccine at 12 and 18 months of age, though 2 doses can be offered at least 4 weeks apart at any age in this cohort
    Adults born in 1970 or later2 lifetime doses of measles-containing vaccine at least 4 weeks apart
    Healthcare workers regardless of age2 lifetime doses of measles-containing vaccine at least 4 weeks apart
    Students at post-secondary educational institutions born before 1970Generally considered immune. Vaccine not routinely recommended, but 1 lifetime dose may be considered.
    Other adults born before 1970Generally considered immune. Vaccine not routinely recommended.

    The measles-containing vaccines are highly effective at preventing infection and complications. They have a long-proven track record of safety. After just one dose of measles-containing vaccine, protection is about 85% to 95% for measles, and after 2 doses, protection is almost 100%. Learn more about effectiveness, safety and side effects.

    Measles-containing vaccines are provided free of charge for eligible populations. To see if you are eligible to get vaccine, you can call the Immunization Booking Line at 811 between 8 am and 6 pm if you live in the Calgary or Edmonton Zone. If you live in another zone in Alberta, contact your local public health or community health centre.

    If you have any questions about measles or immunizations, contact your primary care provider such as your doctor, pharmacist, midwife, nurse practitioner, or public health nurse.

    If you do not know you or your child’s immunization history, text "vaccine record" to 88111, call Health Link at 811, or call your local public health or community health centre for assistance.

    • Albertans 14 years of age and older can check their immunization history using myhealthrecords.

    Routine childhood and school immunization coverage in Alberta can be found on the Interactive Health Data Application (IHDA) and visualized on the Alberta childhood immunization coverage dashboard.

  • Prevent the spread

    There are things you can do to prevent getting sick and to protect others:

    • Get your measles-containing immunizations.
    • Stay home when feeling sick.
    • Avoid close contact with people who are sick.
    • Call Health Link at 811 before visiting any hospital, clinic or healthcare provider.

    If you think you have been exposed to measles

    • If you think you or your child has been exposed to measles, call Health Link at 811 before visiting any healthcare provider, clinic, or hospital. The registered nurse who answers your call will guide you on the next steps.
    • If you are not protected against measles and you are in contact with a measles case, you will be required to stay home for a period of time starting 5 days after the first exposure to the case to 21 days after the last exposure to the case. It is important to monitor yourself for symptoms during this time.
    • If you have contact with the measles virus, are not immunized and are at risk for serious illness, you may be offered immune globulin. Immune globulin can help prevent measles or prevent you from getting seriously sick if you do get measles.
    • Immune globulins give quick, short-term protection. For long-term protection, immunization is needed.
  • Public Health Follow-up

    Measles is a disease that must be reported to public health in Alberta. There are legislative requirements for reporting, case investigation and contact management.

    When someone gets measles, public health staff will contact them (or their parent/guardian) to ask and answer questions to prevent spread of infection to others. Public health will try to find out where the person caught measles and who else may be at risk of infection. This includes identifying people who may have been exposed, especially those who are not protected against the disease. If these people are found quickly, steps can be taken to reduce their risk of getting measles. Public health may need to speak with the person who has measles more than once to gather all the necessary information to help stop the disease from spreading.

    People who are not immune to measles will be asked to stay away from public places during the time they may develop the disease. This helps protect others and prevent further spread of the illness in the community.

  • Travel advice

    Measles can be spread over times of high travel (like spring break or large annual gatherings). If you are unimmunized and travelling or returning from travel, be aware of areas where measles is currently spreading.

    If you or a loved one is traveling to any country outside of Canada or to or through the areas listed below where measles is spreading in Canada, consult table 6 for vaccine eligibility. This table will be updated as needed.

    Areas where measles is currently spreading in Canada include:

    Alberta

    Ontario

    Table 5. Age and vaccine recommendation for travel.

    Age cohortVaccine recommendations
    Infants 6 up to and including 11 months of age1 dose of MMR vaccine
    Children 12 months up to and including 17 years of age2 doses of measles-containing vaccine at least 4 weeks apart and after turning 1 year of age
    Adults born in 1970 or later2 lifetime doses of measles-containing vaccine at least 4 weeks apart
    Adults born before 1970Generally considered immune. However, those with no history of laboratory-confirmed measles disease and no lab evidence of measles immunity may be considered for 1 lifetime dose of measles containing vaccine.

Weekly reporting

As of November 29, 2025, a total of 1,975 confirmed measles cases were reported to Alberta Primary and Preventative Health Services.

Table 6. Cumulative counts of hospitalizations, ICU admissions and deaths among confirmed measles cases between January 1 and November 29, 2025

 Count
Cases1,975
Hospitalizations158
ICU Admissions15
Death1
  • Counts are cumulative and not limited to those currently in hospital or ICU
  • ICU admissions are included in the total count of hospitalizations
  • Hospitalizations, ICU admissions and deaths are only included if the outcome was related to their measles infection. 

Table 7. Immunization status of confirmed measles cases as of November 29, 2025

Immunization status1Count
Unimmunized1,772
1 dose53
2 or more doses78
Unknown72
Total1,975

1Information on who is considered protected can be found in the Prevention of measles section.

Notes for Figure 2a-f:

  • Excludes measles immunoglobulin administered as post-exposure prophylaxis
  • Includes null doses administered to children < 12 months of age

Measles Toolkit

These resources are available to support those working with children, volunteers, parents, guardians and their families to stay informed and help prevent measles outbreaks in their communities. 

Get help

Online resources are available if you need advice on handling stressful situations:

If you need to talk to someone, call the 24-hour Mental Health Help Line: