The First Case of Co-Infection with Omicron Subvariants BA.5.2.48 and BF.7.14 — Chongqing Municipality, China, February 2023

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Chinese Center for Disease Control and Prevention. The situation of the COVID-19 infection in China. 2023. https://www.chinacdc.cn/jkzt/crb/zl/szkb_11803/jszl_13141/202302/t20230215_263756.html. [2023-2-15]. (In Chinese). https://www.chinacdc.cn/jkzt/crb/zl/szkb_11803/jszl_13141/202302/t20230215_263756.html