Temporary side effects are considered typical after a person gets a COVID-19 vaccine. These side effects include headaches, fatigue, and fever, which imply that the immune system is accelerating up and giving out a normal response to the vaccines.
The response of white blood cells signaling inflammation is responsible for chills, tenderness, fatigue, and other side effects.This rapid-response step of one’s immune system tends to diminish with age, and it is one reason why younger people report having the side effects more often than older adults. Also, some vaccines simply provoke more reactions than others. Everyone’s immune system reacts to the vaccine differently.
Finally, authorities are yet to conclude whether temporary heart inflammation that can occur with many types of infections also might be a rare side effect after the COVID-19 vaccines, the kind which is made up by Pfizer and Moderna.The United States health officials can not yet tell if there is a significant link but say that they are currently going through a small number of reports, mostly done on male teens or young adults.