Clinical Characteristics of Two Human to Human Transmitted Coronaviruses: Corona Virus Disease 2019 versus Middle East Respiratory Syndrome Coronavirus.

Ping Xu; Guo-Dong Sun; Zhi-Zhong Li

This study has several limitations. First, many patients infected by COVID-19 remained to be hospitalized at the time of manuscript submission, leading to the unavailable of some data. Second, the follow-up time of COVID-19 population is too short to get related data from long-term observations of this disease. Third, finding of statistical tests and p values between COVID-19 and MERS-COV populations should be interpreted with caution. Fourth, the number of MERS-COV patients treated by drugs is small, careful understanding is needed for the cure rate of drug for this disease. Finally, as COVID-19 is still developing around the world and remains to have many unknowns, the results of this study are staged and need to be carefully understood. More large-sample, multicentre, high-quality research should be performed to update this study.