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\begin{document}

\title{Features and significance of the recent enormous COVID-19 epidemic in
China}



\author[1]{Ji-Ming Chen}%
\author[1]{Huan-Yu Gong}%
\author[1]{Rui-Xu Chen}%
\author[2]{Si-Tong Liu}%
\author[1]{Ming-Hui Sun}%
\author[1]{Guo-Hui Li}%
\author[3]{Ting-Ting Yang}%
\author[4]{Ji-Wang Chen}%
\affil[1]{Foshan University School of Life Science and Engineering}%
\affil[2]{Qingdao Municipal Center for Disease Control and Prevention}%
\affil[3]{The Affiliated Hospital of Qingdao University}%
\affil[4]{University of Illinois Chicago Department of Medicine}%


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  \date{June 14, 2024}


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\begin{abstract}
1. A survey on the recent COVID-19 epidemic in China was conducted. 2.
The epidemic likely made over 85\% of people in China sick in December
2022. 3. The epidemic likely ended in early January 2023. 4. The
epidemic had the features of spreading more rapidly and widely and
having a higher symptomatic rate than previously thought. 5. The above
features could lead to many severe cases and deaths due to the shortages
of medical resources. 6. The above features greatly enhanced the
population immunity in China, which will accelerate the end of the
COVID-19 pandemic and reduce the emergence of risky variants of
SARS-CoV-2 in China.%
\end{abstract}%



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