CPHA Canvax

"What is already known about this topic?

In preauthorization trials, adverse reactions were reported less frequently following a homologous COVID-19 mRNA vaccine booster dose than after receipt of the second primary dose.

What is added by this report?

Review of surveillance data found that local and systemic reactions were less frequent after a homologous COVID-19 mRNA vaccine booster dose than after the second primary vaccine dose. Myocarditis was rarely reported following an mRNA vaccine booster dose.

What are the implications for public health practice?

All persons aged ≥12 years should receive a COVID-19 booster dose. Vaccination providers should educate patients that local and systemic reactions are expected following a homologous COVID-19 mRNA vaccine booster; however, these reactions are less common than those following the second primary series dose." - Safety Monitoring of COVID-19 Vaccine Booster Doses Among Adults — United States, September 22, 2021–February 6, 2022

Rating See Comments Ratings


Vaccine Safety and Development,Vaccine Safety,Adverse Events Following Immunization (AEFI),Sub Topics: Vaccine Safety and Development,Monitoring and Surveillance,Outbreaks and Pandemics,COVID-19,Vaccine Monitoring and Surveillance,Vaccine Monitoring Vaccine Safety and Development
Vaccine Safety
Adverse Events Following Immunization (AEFI)
Sub Topics: Vaccine Safety and Development
Monitoring and Surveillance
Outbreaks and Pandemics
Vaccine Monitoring and Surveillance
Vaccine Monitoring


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