Employees of the Palestinian Ministry of Health take part in an exercise simulating possible coronavirus infections, at al-Nasr neighborhood in Gaza City, on July 18, 2020. (Photo by Rizek Abdeljawad/Xinhua)

Employees of the Palestinian Ministry of Health take part in an exercise simulating possible coronavirus infections, at al-Nasr neighborhood in Gaza City, on July 18, 2020. (Photo by Rizek Abdeljawad/Xinhua)

Employees of the Palestinian Ministry of Health take part in an exercise simulating possible coronavirus infections, at al-Nasr neighborhood in Gaza City, on July 18, 2020. (Photo by Rizek Abdeljawad/Xinhua)

Employees of the Palestinian Ministry of Health take part in an exercise simulating possible coronavirus infections, at al-Nasr neighborhood in Gaza City, on July 18, 2020. (Photo by Rizek Abdeljawad/Xinhua)