A man receives a dose of the COVID-19 vaccine in Casablanca, Morocco, on Aug. 18, 2021. The total number of people fully vaccinated against COVID-19 in Morocco reached 12,341,745, the Moroccan Ministry of Health on Wednesday said in a statement. (Photo by Chadi/Xinhua)

A medical worker prepares a dose of the COVID-19 vaccine in Casablanca, Morocco, on Aug. 18, 2021. The total number of people fully vaccinated against COVID-19 in Morocco reached 12,341,745, the Moroccan Ministry of Health on Wednesday said in a statement. (Photo by Chadi/Xinhua)

A medical worker prepares a dose of the COVID-19 vaccine in Casablanca, Morocco, on Aug. 18, 2021. The total number of people fully vaccinated against COVID-19 in Morocco reached 12,341,745, the Moroccan Ministry of Health on Wednesday said in a statement. (Photo by Chadi/Xinhua)

A man receives a dose of the COVID-19 vaccine in Casablanca, Morocco, on Aug. 18, 2021. The total number of people fully vaccinated against COVID-19 in Morocco reached 12,341,745, the Moroccan Ministry of Health on Wednesday said in a statement. (Photo by Chadi/Xinhua)