(Selena Ross/ CTV News) — Quebec could change its vaccine strategy based on new data out of Israel about the efficacy of the first dose, on its own, of the Pfizer COVID-19 vaccine, says a top adviser in the province.
Israel just provided the world with its first large-scale, real-world hint of how effective the first dose of the Pfizer vaccine is before the booster, and it doesn’t seem reassuring for places that have delayed the second shot, including Quebec and the United Kingdom.
“We not only monitor the data that comes from Quebec but also what is observed around the world,” Dr. Gaston De Serres, a chief adviser on Quebec’s vaccine strategy, told CTV News. (…)