Among the changes, the province will no longer recommend those with mild systems get tested as of Aug. 16. "There's still a quarter of that population where adults are still completely susceptible to the delta variant, who aren't vaccinated," said Chagla, from St. Joseph's Healthcare Hamilton. In Canada, experts aren’t sure whether a coronavirus booster shot is needed yet. Many seem to be sparked by the economic and social impacts of the coronavirus and government attempts to contain it. More CBC world pandemic coverageStay informed with the latest COVID-19 data.

Source: CBC News July 30, 2021 19:52 UTC