![Moderna, Pfizer-BioNTech vaccines have been approved in Canada. Here's what you need to know about them | CBC News Moderna, Pfizer-BioNTech vaccines have been approved in Canada. Here's what you need to know about them | CBC News](https://i.cbc.ca/1.5836779.1614022978!/fileImage/httpImage/vaccine-stages-canada.jpg)
Moderna, Pfizer-BioNTech vaccines have been approved in Canada. Here's what you need to know about them | CBC News
TRICARE on X: "The #Moderna and #Pfizer vaccines require two doses, and they are not interchangeable. Remember to schedule your second shot 21 or 28 days after the first depending on which
![Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years — United States, January–March 2021 | MMWR Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years — United States, January–March 2021 | MMWR](https://www.cdc.gov/mmwr/volumes/70/wr/social-media/mm7018e1_EffectivenessOlderAdults_IMAGE_28Apr21_1200x675.jpg)
Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years — United States, January–March 2021 | MMWR
![Pfizer or Moderna booster - which is more effective? Here's what an MOH study shows | The Straits Times Pfizer or Moderna booster - which is more effective? Here's what an MOH study shows | The Straits Times](https://static1.straitstimes.com.sg/s3fs-public/articles/2021/11/15/211116_should-you-mix-and-match-covid-19-booster_online_1.jpg?VersionId=rwwDuMqtS7QEuo8zVwjcvgjzEJJozCEj)