摘要
The coronavirus disease 2019(COVID-19)has affected the whole globe since its outbreak in December 2019,[1]and many countries have tried several measures to protect and mitigate against its spread.Although the outbreaks have been effectively controlled in China,COVID-19 is still emerging as a public health crisis worldwide,causing massive panic.[2]Additionally,there are still scattered new cases being reported in China.[3]Therefore,in order to adhere to the policy of preventing imported cases and domestic resurgence,varied strategic countermeasures against COVID-19 have been enforced on a regular basis.As respiratory droplet and contact are the main modes of COVID-19 transmission,[4]all endoscopy centers have a higher risk of exposure to COVID-19 than other areas in a hospital.
基金
This work was supported by the National Natural Science Foundation of China(82103496).
