 This study found that health belief model, HBM, constructs are important factors in determining people's intentions to get vaccinated against COVID-19. Specifically, perceived susceptibility, severity, and barriers have a strong influence on vaccination intention, while self-efficacy and cues to action have a lesser impact. Additionally, the study found that these factors vary depending on the country and population group. In Saudi Arabia, for example, susceptibility, severity, and barriers have a greater influence than self-efficacy and cues to action, whereas in the United States, self-efficacy and cues to action have a stronger impact. Furthermore, the study found that certain demographic groups such as students, healthcare workers, and parents may be more or less influenced by different factors. This article was authored by Yambi Limbu and Rajesh K. Gautam.