Published: 4 January 2023
Author(s): Silvia Accordino, Ciro Canetta, Francesco Blasi
Issue: May 2023
Section: Letter to the Editor

Vaccinations against coronavirus disease 2019 (COVID-19) have undoubtedly conferred widespread protection against infection worldwide and are strongly associated with prevention of serious illness, with a hospitalization rate 10.5 times higher in unvaccinated compared with fully vaccinated persons [1,2].


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