“…1 Notably, severe allergic reaction to vaccines is rare, 2 and the female gender was found to be consistently associated with an increased risk of side effects following receiving different types of COVID-19 vaccines. 3,4 The safety of three types of COVID-19 vaccines, including Pfizer, AstraZeneca, and Sinopharm, was recently studied. Accordingly, the investigators found that the systemic events were more common with AstraZeneca and Pfizer vaccines, and the symptoms reported in this regard were fatigue, body pain, headache, muscle pain, fever, and gastrointestinal side effects.…”