Serosurvey of SARS-CoV-2 among hospital visitors in China

• 作 者: Wenhua Liang Yongping Lin Jianping Bi Jianfu Li Ying Liang Sook-San Wong Mark Zanin Zifeng Yang Caichen Li Ran Zhong Guowu Jiang Guang Han Desheng Hu Jianxing He Nanshan Zhong
• 机 构: Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical Univ
• 出 处: 细胞研究（英文版）
• 发表日期: 2020年9期

Dear Editor,rnIn China, the epidemic of COVID-19 has been temporarily brought under control due to strong measures, while there are few new cases except some imported ones (https://static.wecity.qq.com/wuhan-haiwai-pre/dist/index.html#/).The PCR-based test result combined with clinical symptoms has widely been used for the detection and confirmation of COVID-19.1 However, the prevalence of asymptomatic or subclinical SARS-CoV-2 infection in China remained unknown.