Abstract
Background and purpose Vaccinations provide disease protection through a variety of mechanisms; however, vaccines can occasionally cause adverse effects. Therefore, the objective of this investigation was to assess the short- and long-term adverse effects of COVID-19 vaccinations in Saudi Arabia. Methods In Saudi Arabia, between October 2021 and October 2022, a cross-sectional study was conducted. A validated Arabic and English dual-language online questionnaire were utilized to collect data. Results This investigation included 492 participants who were all immunized against the COVID-19 virus. There were 152 (30.9%) male participants and 340 (69.1%) female participants, with a mean age of 35±10.7 years. About 72.2% of study participants received three doses of vaccine, with 75.6% receiving the Pfizer-BioNTech vaccine, 22.2% receiving the Oxford-AstraZeneca vaccine, and 2.2% receiving the Moderna vaccine. Fever was observed in 66.3% (326/492) of the participants following vaccination, headache in 57.3% (282/492) of the participants, fatigue in 54.7% (269/492) of the participants, and influenza-like symptoms in 51% (251/492) of the participants. Younger participants (18-29 years old) exhibited influenza-like symptoms and fever after vaccination in comparison to older participants (P=0.03, P=0.02, respectively). In contrast, older participants reported more immobilization of the hands or legs, difficulty breathing, and chest pain than younger participants (P=0.04, P=0.02, and P=0.03, respectively). There was a significant correlation between gender and injection-site pain, headache, lethargy or convulsions, and flu-like symptoms. In addition, the participants' clinical history of chronic diseases was significantly associated with the occurrence of post-vaccination adverse effects. Conclusion The majority of the documented adverse reactions are of a temporary and minimal nature. Additional research is required to assess the enduring adverse reactions and efficacy of the vaccines in preventing SARS-CoV-2 reoccurrence.
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