The term "residual positive" refers to a COVID test result that continues to detect the presence of virus long after a person has recovered from the disease. Meanwhile, dozens of Australians who were refused flights home from India because of dubious positive test results are still awaiting a solution. "If you or a member of your travelling group test positive, you won't be allowed to travel to Australia." But within those rules, Canada has made allowances for the existence of residual positives. This exemption addresses the potential for residual positive tests given that individuals can continue to test positive up to three months after they have recovered and are no longer infectious."

Source: CBC News May 21, 2021 16:07 UTC