AUTHOR=Madenbayeva Akzhan M. , Kurmangaliyeva Saulesh S. , Urazayeva Saltanat T. , Kurmangaliyev Kairat B. , Bazargaliyev Yerlan Sh. , Kudabayeva Khatimya I. TITLE=Impact of QazVac vaccination on clinical manifestations and immune responses in post—COVID syndrome: a cross-sectional study JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1556623 DOI=10.3389/fmed.2025.1556623 ISSN=2296-858X