@article{:/content/10.2807/1560-7917.ES.2022.27.13.2200254, author = "Huang, Jing and Zeng, Guangting", title = "Letter to the editor: Epidemiology of the SARS-CoV-2 variant Omicron BA.2 – vigilance needed", journal = "Eurosurveillance", year = "2022", volume = "27", number = "13", eid = 22-00254, pages = "", url = "https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2022.27.13.2200254", doi = "https://doi.org/10.2807/1560-7917.ES.2022.27.13.2200254" }