NOTE: Effective January 1, 2018, Public Health will no longer be administering TB skin tests that are required for employment or volunteer purposes or admission to a a program or study in a school, college, university or other educational institution.
Please check with your family doctor to see if they provide TB skin testing.
If you do not have a family doctor, or your doctor does not provide TB skin testing please refer to the TB Skin Test Providers list below.
Tuberculosis (TB) is a curable, infectious disease which usually effects the lungs (pulmonary TB). However tuberculosis bacteria can travel through the blood to infect other parts of the body (non-pulmonary TB).
Typically, pulmonary TB is infectious but non-pulmonary TB is not infectious. In order to become infected with TB a person requires prolonged, close contact with someone who has TB in their lungs and is coughing or sneezing the bacteria into the air.
Active and Inactive Tuberculosis
Inactive or latent TB occurs when a person becomes infected but the body's immune system is able to prevent the bacteria from making you sick.
Active TB disease occurs when the body's immune system is unable to stop the growth and spread of the bacteria resulting in illness.
Both inactive and active TB are treatable and curable.
TB treatment is free and is accessible through Region of Waterloo Public Health.
TB Skin Test
A TB skin test is used to screen for tuberculosis. A TB skin test indicates if you have been exposed to TB (if the germ is in your body). It can not tell if you have active or inactive TB. If the skin test shows that the TB germ is in your body, more testing will be done to determine if you have active TB disease.
One-Step versus Two-Step TB Skin Tests
A one-step TB skin test means that a test is placed and read 48 hours later to determine if you have been exposed to TB.
A two-step TB skin test means that an initial test is placed and read (in the 48 hour time frame) to establish a baseline. If the initial test is positive, no further testing is completed. If the initial test is negative, a second test is performed one to four weeks after the initial test and again read 48 hours later.
If a person has a documented two-step test, an additional two-step test never needs to be repeated.
Check your paperwork if you do not know if you need a one-step or two-step test. You can also call to check with the organization requiring the test.
TB Skin Test at Public Health
TB skin tests are publicly funded (free) and available at Public Health for the following individuals:
- Contacts of active TB cases
- Immigrants, refugees and international students from endemic countries, within five years of arrival in Canada
- Canadian-born travellers who have travelled to endemic countries for more than one month
- Clients with medical risk factors.
Call 519-575-4400 to make an appointment at Public Health.
TB Skin Test Providers in Waterloo Region
| Clinic | Location | Phone |
| First Line Walk-in Clinic | 600 Hespeler Road, Cambridge | 519-267-2588 |
| K-W Walk-in Clinic | 100 The Boardwalk, Kitchener | 519-279-4098 |
| KW Urgent Care Clinic | 751 Victoria Street South, Kitchener | 519-745-2273 |
| Laurentian Walk-in Clinic* | 750 Ottawa Street South, Kitchener | 519-570-3174 |
| Urgent Care Clinic | 385 Fairway Road South, Kitchener | 519-748-2327 |
| Waterloo Walk-in Clinic | 170 University Avenue West, Waterloo | 519-725-1514 |
| Weber Medical Centre | 1400 Weber Street, Kitchener | 519-748-6933 |
| Westmount Place Walk-in Clinic | 50 Westmount Road North, Waterloo | 519-954-0111 |
*The Laurentian Walk-in Clinic does not test students.
TB skin testing is available at Conestoga College for students of Conestoga College or McMaster University (Conestoga campus). Clinic information is available through MyConestoga under Practicum Services Community or by calling Practicum Services at 519-748-5220 ext 3101.
TB Treatment
TB treatment is free and available through Public Health.
Additional Resources
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