Turning over while in bed is a very simple movement for most people that doesn't require much thinking. Yet it's a different story for a critically-ill COVID-19 patient who has been in the ICU of Tongji Hospital in Wuhan. 

In helping the patient turn over, medics have to pay attention to every part of his body since he has a breathing machine, an ECMO (Extracorporeal Membrane Oxygenation), a catheter and many other tubes and machines attached to him. Sometimes, it requires seven experienced medics just to attend to one patient.