Through confirmation of symptoms and diagnostics by supplier interview or evaluate of medical data, 663 stories have been verified. Multiple research and reviews of information from vaccine security monitoring systems continue to show that vaccines are safe. As a outcome, the agency will refocus enhanced surveillance and safety monitoring efforts toward children and adolescents. COVID-19 vaccines aresafe and efficient and severe reactions after vaccination are uncommon. No, there is not a evidence that there is an increased danger of rejection following vaccination.