A staff member transfers a batch of China-donated COVID-19 vaccines at Noor Khan Air Base near Islamabad, Pakistan, Feb. 1, 2021. A batch of China-donated COVID-19 vaccines has been officially handed over to Pakistan on Monday at Noor Khan Air Base near the country's capital Islamabad, making Pakistan the first country to receive the Chinese government donated COVID-19 vaccine. (Xinhua/Liu Tian)