Dear Editor,

We would like to share ideas on the publication “Physician’s perception about the side effects of COVID-19 vaccine and their role in vaccination program.”Reference Muhammad, Shah and Muhammad ¹ According to Muhammad et al., physicians had a favorable opinion of the COVID-19 vaccination. To improve the perceptions of physicians who had a negative perception, health care authorities and related agencies must take precautions to assure that the COVID-19 vaccine is effective and safe.Reference Muhammad, Shah and Muhammad ¹ Intent to undergo COVID-19 vaccination is influenced by a variety of circumstances, and the pattern varies depending on the environment and outbreak level. Adoption rates may also differ dramatically when additional data on vaccine efficacy and safety becomes available.Reference Mungmunpuntipantip and Wiwanitkit ² Acceptance tendencies change with time, according to a new study.Reference Xiao, Cheung and Wu ³ In order to assess the impact of vaccination willingness and associated factors, a longitudinal study rather than a cross-sectional method may be more suited.