Primary series and booster COVID-19 vaccine effectiveness in a cohort of healthcare workers in Albania during a BA.1 and BA.2 variant period, January - May 2022 https://www.medrxiv.org/content/10.1101/2023.05.05.23289503
Primary series and booster COVID-19 vaccine effectiveness in a cohort of healthcare workers in Albania during a BA.1 and BA.2 variant period, January - May 2022 https://www.medrxiv.org/content/10.1101/2023.05.05.23289503