A man in the Northern Territory recently received a "weak positive" test result for COVID-19. Understanding how coronavirus tests work shows us why this can happen from time to time.
Miniaturized laboratory equipment is making it easier to identify airborne pathogens in the field, but there's still work ahead to be able to instantly determine if a room is safe or contaminated.
COVID-19 tests rely on a process developed at a biotech company co-founded by a Canadian. Canada’s current testing expertise needs to be channelled to prepare for the next wave, and the next pandemic.
Expanding coronavirus testing is one of the most important tasks public health officials are tackling right now. But questions over accuracy of the two main types of tests have rightly caused concern.
Unequal access to testing can lead to late diagnosis and preventable deaths due to COVID-19 among the poor people.