Photo: Screenshot from Twitter

Richard Horton, editor-in-chief of The Lancet, praised the effectiveness of China's temporary hospitals during the COVID-19 pandemic, and called on the world to join China in mourning "those who died from coronavirus, especially health workers on the frontlines of the pandemic" on his Twitter page on Friday. 

China is holding a national mourning on Saturday for martyrs who sacrificed their lives in the fight against the novel coronavirus and compatriots who died of the disease. 

Public recreational activities are suspended across the country to express deep condolences of the people of all ethnic groups to those who have died. 

"We should make April 4 a global day of mourning, recognition, and respect," Horton wrote.