​​​One Health Bulletin (Jan 2023)

COVID–19 breakthrough infection after four doses of the vaccines: A case report

  • Hongrang Zhou,
  • Guifu Li,
  • Xiaoming Wang,
  • Zhe Zhou,
  • Wen Kong,
  • Jingfei Hu,
  • Kaiyou Ye,
  • Wenjiang Zhong,
  • Xiaoling Wang,
  • Ning Xiao

DOI
https://doi.org/10.4103/2773-0344.374229
Journal volume & issue
Vol. 3, no. 1
pp. 7 – 7

Abstract

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The COVID-19 vaccines provide a high degree of protection against severe disease, hospitalisation, and death. However, no vaccine claimed 100% effectiveness and it is expected that a small proportion of vaccinated individuals may develop a breakthrough infection due to individual differences, virus variants and other factors. We conducted an epidemiological investigation and analysis of an imported case who had finished four doses of vaccination, and in order to provide a relevant reference for regular epidemic prevention and control in the post-pandemic era.

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