COVID-19 vaccine dose.With roughly 25 per cent of the Canadian population now vaccinated against the virus, many are wondering if it’s safe for them to return to some semblance of normal, such as having indoor gatherings with friends, or hugging their grandparents.
Experts, though, are urging restraint.“We know that the first vaccine seems to offer good protection, but then there’s a lot of new variants spreading around,” said Dr.
Stephen Hoption Cann, chair of the University of British Columbia’s clinical research ethics board. “We don’t really know how good that protection is after every variant.” How effective is a single dose of a COVID-19 vaccine?