Regarding structural factors, which mainly include sociodemographic variables, beliefs in conspiracy theories are positively related to health status after COVID-19 and are negatively related to income, knowledge, and the quality of information. The quality of information has the largest correlation, suggesting that high-quality information can help to reduce beliefs in conspiracy theories. The significant roles of both knowledge and information quality attest to the importance of literacy in enlightening the public. The fact that health status has no statistically significant correlation but a negative change in health status after COVID-19 has a significant correlation suggests that the change in health after COVID-19 is more important than the usual health status. The results that education level, gender, and age have no significant effects differ from previous findings [29,48].