Abstract

COVID -19 infections is a global problems and many efforts for its eradication has been done. Also eradication of COVID -19 after vaccination is possible. Vaccination is the first choice to eradicate COVID-19. Also some side effects after second vaccination occurred and vector vaccines have more side effects than inactivated virus vaccines. Some side effects of COVID-19 vaccines is cardiovascular side effects for example myocarditis and pericarditis also vascular side effects including thrombosis. The mechanism of COVID-19 side effects is unknown but auto immune responses and inflammation may be intervened in this processes and believed that the role of ACE2 receptors in this process..In this paper we try to explain some critical side effects of COVID-19 vaccines.