Tuberculin Skin Testing (TST) or Interferon Gamma Release Assay (IGRA) and COVID-19 Vaccination
If a TST or IGRA is required, it should be administered and read before immunization or delayed for four weeks after vaccination.
TB
Main Page Content
Step-by-step Guide to Mantoux Testing
Treatment For Latent TB(Tuberculosis) Infection Isoniazid (INH)
Your public health nurse or health care provider has told you that you have a positive TB skin test. This means you have come in contact with the tuberculosis germ (bacteria) at some time in the past.
Tuberculosis (TB) Poster
|
Latent TB Infection (LTBI) |
OR |
Active TB Disease |
|---|
Resources for Health Care Providers
Long-Term Care and Retirement Home: Recommendations for Tuberculosis (TB) Screening
The Long Term Care Homes Act 2007, Ontario Regulation 79/10, and Retirement Homes Act 2010, Ontario Regulation 166/11, require screening for tuberculosis.
Latent TB Infection Treatment Guidelines
TB Medical Surveillance
Immigration, Refugees, and Citizenship Canada (IRCC) requires certain individuals to complete tuberculosis (TB) medical surveillance as a condition of entry or continued residence in Canada.
Use of Interferon-Gamma Release Assay (IGRA)
IGRA assesses for past exposure to Mycobacterium tuberculosis. It is more specific for the bacteria than the Tuberculin Skin Test and is not affected by past BCG vaccination.