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Different tests, different purposes

A graph comparing rapid antigen testing and PCR testing for probability of detecting SARS-COV-2 based on viral load across time since exposure. A marker showing the onset of symptoms occurs before both tests reach maximum probability of detection.
Antigen tests detect the presence of the COVID-19 virus and can provide results within 15 minutes. They are most effective when viral loads are the highest, which is the 7-10 days when the virus is most likely to be transmitted. In other words, antigen tests are best used to answer the question “Am I contagious?”

A right step in the right direction

A BTNX Rapid Response COVID-19 Antigen Test is shown with all of its components including test swab, buffer and cartridge

This past week, Shoppers Drug Mart and Loblaws announced that they would make rapid COVID-19 tests available to consumers.  We believe this is a right step in the right direction in terms of making antigen tests available to everyone. Rapid antigen tests can be a powerful tool in stopping the spread of COVID-19, especially if they are readily available whenever and wherever they are needed. Like in your medicine cabinet at home.