A health worker processes samples collected for COVID-19 tests in a laboratory in Rabat, Morocco, Jan. 28, 2021. Morocco's COVID-19 tally rose to 469,139 on Thursday after 756 new cases were registered, as the country started a nationwide vaccination campaign. (Photo by Chadi/Xinhua)

A health worker processes samples collected for COVID-19 tests in a laboratory in Rabat, Morocco, Jan. 28, 2021. Morocco's COVID-19 tally rose to 469,139 on Thursday after 756 new cases were registered, as the country started a nationwide vaccination campaign. (Photo by Chadi/Xinhua)

A health worker processes samples collected for COVID-19 tests in a laboratory in Rabat, Morocco, Jan. 28, 2021. Morocco's COVID-19 tally rose to 469,139 on Thursday after 756 new cases were registered, as the country started a nationwide vaccination campaign. (Photo by Chadi/Xinhua)

Moroccan King Mohammed VI (R) receives the first shot of COVID-19 vaccine in Fez, Morocco, on Jan. 28, 2021. Morocco launched a nationwide vaccination campaign on Thursday. This came one day after Morocco received the first batch of Chinese vaccines. (Maghreb Arab Press/Handout via Xinhua)