Correction

After publication of this article [1] it came to our attention that the affiliation of Jun Chen and Hong-zhou Lu were incorrectly shown.

Jun Chen’s affiliation should have been given as Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.

Hong-zhou Lu should have been given as Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China. Huashan Hospital affiliated to Fudan University, Shanghai, China. Medical College of Fudan University, Shanghai, China.

The original article has been updated to reflect this change.