Epidemiological Analysis and Effective Control of COVID-19 Outbreaks Caused by the Omicron Subvariant BA.2 in a Medium-sized City in China, 2022
| Author | Zhu Yang | en |
| Author | Jinhong Zhao | en |
| Author | Shuzhi Zhong | en |
| Author | Yikun Wu | en |
| Author | Bingjie Ye | en |
| Author | Yiming Wang | en |
| Author | Minmin Xiao | en |
| Orcid | Zhu Yang [0000-0002-5034-5037] | en |
| Orcid | Jinhong Zhao [0000-0001-6590-3372] | en |
| Orcid | Shuzhi Zhong [0000-0003-0314-9727] | en |
| Orcid | Yikun Wu [0009-0008-0168-5087] | en |
| Orcid | Bingjie Ye [0009-0001-4856-4214] | en |
| Orcid | Yiming Wang [0009-0005-9805-6145] | en |
| Orcid | Minmin Xiao [0000-0003-2153-7651] | en |
| Issued Date | 2023-04-30 | en |
| Abstract | Background: More and more variants of concern (VOCs) of SARS-CoV-2 continued to emerge in different regions worldwide. Objectives: Studies on COVID-19 outbreaks caused by different VOCs are critical for understanding their infections in humans in different regions. Methods: In this descriptive study, the individual information of 64 confirmed COVID-19 cases reported between March 3 and April 26, 2022, was collected, and the epidemiological features were analyzed. Results: We found COVID-19 epidemic caused by Omicron subvariant BA.2 in 2022 had unique characteristics compared to the earliest COVID-19 outbreaks in 2020 in Wuhu city. First, the geographic distribution of COVID-19 cases was highly concentrated, and most infections (58/64, 90.62%) were identified in one district in this study. Second, the mean age of COVID-19 cases in this study was 39.57 ± 16.39 years old, which was younger than the COVID-19 cases identified in Wuhan and Wuhu cities in 2020. Third, the spanned period of the COVID-19 outbreak in this study was shorter than the COVID-19 outbreak in 2020 in Wuhu city (13 days vs. 34 days). Conclusions: This study illustrates the epidemic of COVID-19 in Wuhu city from March to April 2022, and our result provides valuable information about COVID-19 outbreak caused by omicron subvariant BA.2. It also provides insights into developing effective strategies, such as high coverage of COVID-19 vaccination, lockdown policies, Ankang code, and population-bases COVID-19 screening, for successfully controlling the potential outbreaks caused by Omicron or future novel variants of SARS-CoV-2 in the medium-sized city like Wuhu. | en |
| DOI | https://doi.org/10.5812/jjm-136649 | en |
| Keyword | COVID-19 | en |
| Keyword | Omicron Subvariant BA.2 | en |
| Keyword | Epidemiology | en |
| Keyword | China | en |
| Publisher | Brieflands | en |
| Title | Epidemiological Analysis and Effective Control of COVID-19 Outbreaks Caused by the Omicron Subvariant BA.2 in a Medium-sized City in China, 2022 | en |
| Type | Research Article | en |