COVID-19 vaccine can now get a booster six months after their second shot, B.C.’s top doctor said Monday.People with two doses of AstraZeneca have shown waning levels of protection from infection, although two doses of AstraZeneca still offer strong protection against severe illness, Dr.
Bonnie Henry said Monday.“This may be sooner than other healthy adults in the community where we know there’s very good, strong protection that’s lasting well,” Henry said.Several new studies indicate that a booster may not yet be necessary for those who received either two doses of mRNA or a mix of AstraZeneca and mRNA vaccines, if those doses were administered at an interval of eight to 12 weeks.Brian Grunau with the University of British Columbia’s Dept..