Canada Recommends Pfizer, Moderna As Second Dose After AstraZeneca

The guidance advises against a second AstraZeneca dose, recommending Pfizer or Moderna instead. New evidence shows better responses with an mRNA vaccine following AstraZeneca. The guidance also considers the marginal risk of blood clots. Those who received two AstraZeneca doses can still feel protected.

What is the main purpose of the new guidance regarding vaccine doses?

• To encourage more vaccinations

• To provide clarity on vaccine combinations

• To reduce vaccine hesitancy

• To promote Astra Zeneca exclusively

What reassurance is given to individuals who received two shots of Astra Zeneca?

• They are not protected

• They can feel confident they're protected

• They should get a booster shot

• They need to switch vaccines