On January 8, 2023, Antonina Sergeevna Gordeladze, doctor of medical sciences, professor, passed away at the age of 98. She lived in Leningrad (St. Petersburg) since 1965 and worked for almost half a century until 2011 at the same institution - the Leningrad Sanitary and Hygienic Institute (since 1995, the St. Petersburg State Medical Academy named after I. I. Mechnikov, now the Northwestern Medical University). I.I. Mechnikov St. Petersburg State Medical Academy, now the Northwestern State Medical University named after I.I. Mechnikov. I.I. Mechnikov).