COVID-19 vaccine effectiveness among healthcare workers during the Omicron period in the country of Georgia, January – June 2022 - Caleb L. Ward; Madelyn Yiseth Rojas Castro; Giorgi Chakhunashvili; Nazibrola Chitadze; Iris Finci; Richard Pebody; Esther Kissling; Mark A. Katz; Lia Sanodze (PLoS ONE, 2025)