A medical worker shows a dose of COVID-19 vaccine in a hospital in Cairo, Egypt, March 4, 2021. Egypt started on Thursday vaccinating elderly people and patients with chronic diseases against COVID-19, the Egyptian cabinet said in a statement. Prime Minister Mostafa Madbouly and Health Minister Hala Zayed were present at one of Cairo medical centers to witness the two categories of citizens receiving their first shots of the anti-coronavirus vaccine. (Xinhua/Ahmed Gomaa)

A woman receives a dose of COVID-19 vaccine in a hospital in Cairo, Egypt, March 4, 2021. Egypt started on Thursday vaccinating elderly people and patients with chronic diseases against COVID-19, the Egyptian cabinet said in a statement. Prime Minister Mostafa Madbouly and Health Minister Hala Zayed were present at one of Cairo medical centers to witness the two categories of citizens receiving their first shots of the anti-coronavirus vaccine. (Xinhua/Ahmed Gomaa)

A man receives a dose of COVID-19 vaccine in a hospital in Cairo, Egypt, March 4, 2021. Egypt started on Thursday vaccinating elderly people and patients with chronic diseases against COVID-19, the Egyptian cabinet said in a statement. Prime Minister Mostafa Madbouly and Health Minister Hala Zayed were present at one of Cairo medical centers to witness the two categories of citizens receiving their first shots of the anti-coronavirus vaccine. (Xinhua/Ahmed Gomaa)

A man receives a dose of COVID-19 vaccine in a hospital in Cairo, Egypt, March 4, 2021. Egypt started on Thursday vaccinating elderly people and patients with chronic diseases against COVID-19, the Egyptian cabinet said in a statement. Prime Minister Mostafa Madbouly and Health Minister Hala Zayed were present at one of Cairo medical centers to witness the two categories of citizens receiving their first shots of the anti-coronavirus vaccine. (Xinhua/Ahmed Gomaa)