Volunteers paint red hearts representing the victims who died of COVID-19 on the National COVID Memorial Wall outside St Thomas' Hospital in London, Britain, on March 31, 2021. Bereaved family members and volunteers are in the process of painting hearts along a half-mile wall opposite to the Houses of Parliament in London in remembrance of those who died of COVID-19. Another 4,052 people in Britain tested positive for COVID-19, bringing the total number of coronavirus cases in the country to 4,345,788, according to official figures released Wednesday. (Xinhua/Han Yan)
