Prospective Evaluation of immunity after COVID-19 vaccines

COVID-19 Research Area(s): Vaccines & Treatments

Multiple COVID-19 vaccines will be used in Canada and best use of these vaccines will help us control the pandemic as quickly as possible. Most vaccine companies have used their own tests to measure immune responses to their vaccines. Each vaccine company uses a different test and it is not possible to compare these results directly between different vaccine trials. Therefore, we do not know how the vaccines compare against each other - or how long immunity lasts after vaccination. The purpose of this study is to measure the short- and long-term immune responses generated by different COVID-19 vaccines in adults.