Wendy Pleakley
Well-Known Member
It’s right here:
Canada: Pfizer, Moderna preferred 2nd dose after AstraZeneca
Canada’s National Advisory Committee on Immunization says it is now recommending people who got the AstraZeneca vaccine first should get Pfizer-BioNTech or Moderna for their second shot
The first link was for the UK. Your link is from Canada.
Note that the guidance is based on preliminary results, and two shots of AstraZeneca is still a good option.
COVID-19: B.C.'s approach to AstraZeneca unchanged after NACI recommendation
B.C.'s top doctor says NACI's recommendation that AstraZeneca vaccine recipients receive Pfizer or Moderna for their second shot is based on a small study.
www.citynews1130.com
B.C.’s top doctor says the National Advisory Committee on Immunization’s (NACI) latest recommendation around the use of the AstraZeneca COVID-19 vaccine is not surprising, and the province won’t be changing its current policy.
NACI now says it’s preferable for people who received AstraZeneca for their first shot get an mRNA (Pfizer or Moderna) vaccine for their second dose.
“It’s based on some preliminary data from a study that was done in Germany and with a small number of people. And what it’s based on is measuring of the immune system response,” she said. “It showed that people who had an mRNA vaccine after a dose of AstraZeneca had good or better immune markers afterwards.”
“We’ve weighed this data along with the real-life data that we see about how well these vaccines protect us. Does that little bit of extra antibody or the cell-mediated response translate into better protection in the real world? The answer is we don’t know that yet,” she said, adding both options offer good protection.
“The bottom line is the very real world experience and evidence shows us that we have good protection across the board with both vaccines in our community. Both approaches are highly effective. Mixing an mRNA after a dose of AstraZeneca may give some boost to the immune system, but we don’t know whether that translates into whether you’re better protected or not. We don’t know that definitively and we may not know that for some time,” she said.