Protocol template for cohort event monitoring (CEM) for safety signal detection after vaccination with COVID-19 vaccines

The WHO has published the COVID-19 vaccines: safety surveillance manual to guide the processes for collecting, analysing and sharing safety data and information on COVID-19 vaccines within and across countries. To accompany this manual and facilitate the conduct of active safety surveillance studies using harmonised tools and methods, a protocol template for cohort event monitoring (CEM) studies has been developed. The CEM protocol was commissioned by World Health Organization (WHO), coordinated by Dr. Christine Guillard with the support of Dr. Noha Iessa, in the Pharmacovigilance (PVG) team, within the Regulation and Prequalification department at WHO Headquarters.

Click on these links to access the COVID-19 vaccines: safety surveillance manual and protocol template on the WHO website.