coronavirus numbers in Canada, the country’s deputy chief public health officer Dr. Howard Njoo said Tuesday.The new Panbio COVID-19 Antigen rapid test, which is the first of its kind to be authorized in Canada, can be analyzed on-site without additional equipment or a laboratory setting, and can produce results within 20 minutes.While it may not be as accurate as the “gold standard” real-time PCR test, which are done in medical labs, Njoo said it can be a complement to a comprehensive testing strategy and allow health-care workers to “save the PCR test for those where you actually have sick people and you need to get the diagnosis right.” There are 3 types of coronavirus tests – here’s how they work Antigen tests work by detecting.