Up to 48% of Med Workers Out Sick from Covid vax.
Adverse drug reactions following SARS-CoV-2 vaccination of 3805 healthcare workers cause substantial sick-leave and are correlated to vaccine regimen, age, sex and serological response

Conclusions
Based on a large cohort of health workers, our study confirms that adverse reactions after COVID-19 vaccination can lead to a substantial amount of missed work shifts, potentially causing organizational-level disturbances in staffing. There are significant differences in ADR frequencies related to vaccine type, age and sex, at overall levels not observed for other commonly used vaccines for adults.

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Safe and Effective.