Emerg Infect Dis. 2023 Apr;29(4):855-857. doi: 10.3201/eid2904.221700. Epub 2023 Mar 6.
We reconstructed the SARS-CoV-2 epidemic caused by Omicron variant in Puerto Rico by sampling genomes collected during October 2021-May 2022. Our study revealed that Omicron BA.1 emerged and replaced Delta as the predominant variant in December 2021. Increased transmission rates and a dynamic landscape of Omicron sublineage infections followed.
我们通过采集 2021 年 10 月至 2022 年 5 月期间收集的基因组,重建了波多黎各由奥密克戎变异株引起的 SARS-CoV-2 疫情。我们的研究表明,奥密克戎 BA.1 于 2021 年 12 月出现并取代了德尔塔成为主要变异株。随后,传播率增加,奥密克戎亚谱系感染的动态景观也发生了变化。