This study is Post Authorization Safety Study (PASS) Phase IV of Booster IndoVac COVID-19 Vaccination

This study is Post Authorization Safety Study (PASS) Phase IV, to assess any local and systemic reaction after immunization with IndoVac using retrospective cohort study trial design to assess safety profile following IndoVac booster vaccine in healthy populations aged 18 years and above.

Inclusion Criteria:

1. Clinically healthy subjects aged 18 years and above
2. Subjects have been injected with IndoVac booster.
3. Minimum 6-month interval from primary or booster COVID-19 vaccination.
4. Subjects have been informed properly regarding the study and signed the informed consent form.

Exclusion Criteria:

1. Subjects concomitantly enrolled or scheduled to be enrolled in another study when the subjects got IndoVac booster vaccination.
2. Subject's telephone number is invalid or cannot be contacted.

Healthy adults aged 18 years and above