<p>The AEFI data was extracted from DHIS2 and the AEFI line list and merged onto the Microsoft excel for data cleaning and verification. Due to incomplete data, some cases were excluded. After data cleaning, 43 of the initial 63 cases were analysed. Microsoft excel and SPSS version 28 were used to compute the frequencies, mean, and standard deviation. The AEFI case definition was any person who developed an unfavourable medical occurrence after receiving a COVID-19 vaccine but does not necessarily have a causal connection to the vaccine use in Khomas region between March 2021 and July 2022.</p>