Omicron, waning vaccine protection against transmission suggest time may be up for passports, some say
Feb 06, 2022
Governments need to decide now whether they’ll switch to requiring three doses for a valid proof of vaccination against COVID-19 instead of the current two, according to an Ontario medical expert.
Dr. Peter Juni’s comments come amid growing conversations about limiting certain public health restrictions — defined by some as “living with” COVID-19 — and as Canada’s biggest and most deadly wave of cases begins to wind down.
“If we would want to change our definitions for a vaccine certificate from two to three doses, it would need to be done very swiftly,” said Juni, science adviser of the Ontario COVID-19 Science Advisory Table.
“It wouldn’t make sense if we start to implement something like that only [in the] second half of March. That’s too late.”
Juni said three vaccine doses provide strong protection against COVID-19, particularly from developing severe disease. Requiring three doses to enter establishments like restaurants would also help prevent spread, he added.