Health workers disinfect a public area in Casablanca, Morocco, on June 7, 2020. Morocco on Sunday announced 73 new COVID-19 cases, bringing the total number in the North African country to 8,224. (Photo by Chadi/Xinhua

Health workers disinfect a public area in Casablanca, Morocco, on June 7, 2020. Morocco on Sunday announced 73 new COVID-19 cases, bringing the total number in the North African country to 8,224. (Photo by Chadi/Xinhua)

A health worker disinfects the exterior of a house in Casablanca, Morocco, on June 7, 2020. Morocco on Sunday announced 73 new COVID-19 cases, bringing the total number in the North African country to 8,224. (Photo by Chadi/Xinhua)

Health workers disinfect a public area in Casablanca, Morocco, on June 7, 2020. Morocco on Sunday announced 73 new COVID-19 cases, bringing the total number in the North African country to 8,224. (Photo by Chadi/Xinhua)

Health workers disinfect a public area in Casablanca, Morocco, on June 7, 2020. Morocco on Sunday announced 73 new COVID-19 cases, bringing the total number in the North African country to 8,224. (Photo by Chadi/Xinhua)