This report documents the results of the phase 1 Cohort Event Monitoring (CEM) for Safety Signal Detection, After Vaccination with COVID-19 Vaccines and Post Market Monitoring in Nigeria. The report describes the adverse events occurring in a cohort of enrolled individuals vaccinated with AstraZeneca and Moderna COVID-19 vaccines available in Nigeria during the data collection period. It also captures the demonstrated outcomes of CEM that were designed for an intensive follow-up period of three-to-six months following the first and second doses, as applicable, of the COVID-19 vaccines.

• Cohort Event Monitoring (CEM) for Safety Signal Detection After Vaccination With Covid-19 Vaccines and Post Market Monitoring in Nigeria
• NAIIS CARES ACT End of Project Report Final Revised