For citations:
Popova A.Yu., Gorbunova A.Yu., Ostankova Yu.V., Egorova S.A., Reingardt D.E., Ivanova A.R., Schemelev A.N., Drozd I.V., Zhimbaeva O.B., Danilova E.M., Milichkina A.M., Ezhlova E.B., Melnikova A.A., Bashketova N.S., Buts L.V., Totolian A. Herd immunity to hepatitis A virus in the Saint Petersburg and Leningrad Region. Medical Immunology (Russia). 2025;27(3):625-642. (In Russ.) https://doi.org/10.15789/1563-0625-HIT-3224