HEALTH

After injecting the Pfizer vaccine, the adverse effects on children were usually mild, which was noticed in the first two days. The most common side effects are fatigue, headache, and muscle pain.
But, there were no symptoms of myocarditis, which is a type of heart muscle inflammation in three months. According to the CDC, heart inflammation caused by the virus is generally more severe than cases associated with vaccination, which typically react well to medicine and rest. It is a rare side effect seen in teens or young teens after being injected with the Pfizer vaccine.