Oxford-AstraZeneca and Janssen / Johnson & Johnson... Two More COVID-19 Vaccines Approved by Canada
( Current upated information as of 25-Mar-2021 )
By Farheen Khan, (Hons)B.Sc. (Biochemistry) [Get Well Clinic]
It is now the month of March, and a few more vaccine candidates have marched into our COVID-19 vaccine toolkit. These include the newly approved Oxford-AstraZeneca and Janssen-Johnson & Johnson vaccines.
Both vaccines are viral vector vaccines.1 More specifically, these vaccines contain a weakened, live adenovirus - a virus that causes the common cold.2 To develop these vaccines, scientists first removed all disease-causing and replication-related genes from the adenovirus.1,3–5 As the adenovirus can now no longer replicate or cause disease, it is harmless to the human body.1,3–5