Serological responses triggered by different SARS-CoV-2 vaccines against SARS-CoV-2 variants in Taiwan

Chiao Hsuan Chao, Dayna Cheng, Sheng Wen Huang, Yung Chun Chuang, Trai Ming Yeh, Jen Ren Wang

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Broadly neutralizing ability is critical for developing the next-generation SARS-CoV-2 vaccine. We collected sera samples between December 2021-January 2022 from 113 Taiwan naïve participants after their second dose of homologous vaccine (AZD1222, mRNA-1273, BNT162-b2, and MVC-COV1901) and compared the differences in serological responses of various SARS-CoV-2 vaccines. Compared to AZD1222, the two mRNA vaccines could elicit a higher level of anti-S1-RBD binding antibodies with higher broadly neutralizing ability evaluated using pseudoviruses of various SARS-CoV-2 lineages. The antigenic maps produced from the neutralization data implied that Omicron represents very different antigenic characteristics from the ancestral lineage. These results suggested that constantly administering the vaccine with ancestral Wuhan spike is insufficient for the Omicron outbreak. In addition, we found that anti-ACE2 autoantibodies were significantly increased in all four vaccinated groups compared to the unvaccinated pre-pandemic group, which needed to be investigated in the future.

Original languageEnglish
Article number1023943
JournalFrontiers in Immunology
Volume13
DOIs
Publication statusPublished - 2022 Nov 15

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

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