Dynamics of neutralizing antibodies against COVID-19 Omicron subvariants following breakthrough infection in southwest China between December 2022 and April 2024.

ABSTRACT: From December 2022 to January 2023, the SARS-CoV-2 Omicron BA.5/BF.7 variant significantly impacted mainland China. While most COVID-19 patients experienced mild symptoms and were treated as outpatients or at home, some cases progressed to severe illness, necessitating hospitalization or even resulting in death. To better understand this outbreak and forecast future waves as SARS-CoV-2 continues to evolve, it is crucial to assess the titer of neutralizing antibodies (Nab) for evaluating the establishment of an immune barrier. In this study, we investigated the dynamic evolution of humoral immunity following the breakthrough infection wave driven by the SARS-CoV-2 Omicron BA.5/BF.7 variant in southwest China. Over a period of more than one year, we analyzed 3128 serum samples collected mont

SUBMITTER: He Y 

PROVIDER: S-EPMC12310930 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature