Correction to: BMC Infect Dis 21, 112 (2021)

https://doi.org/10.1186/s12879-021-05802-8

After publication of the original article [1], the authors identified an error in the first affiliation.

The incorrect affiliation is:

Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No.1 Shuaifuyuan, Wangfujing Street, Beijing 100730, China

The correct affiliation is:

Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China

The original article has been corrected.