A burger shaped as coronavirus is seen at a restaurant in Hanoi, Vietnam March 25, 2020. That's the philosophy of one Hanoi chef who is attempting to boost morale in the Vietnamese capital by selling green, coronavirus-themed burgers. REUTERS/Kham

Burgers shaped as coronavirus are seen at a restaurant in Hanoi, Vietnam March 25, 2020. This coronavirus is very dangerous. But if we eat a burger in its shape, in our minds its like we are already victorious," said Quy. REUTERS/Kham

Chef Dang Van Khu carries burgers shaped as coronavirus at a restaurant in Hanoi, Vietnam March 25, 2020. The shop has sold around 50 burgers a day, despite the growing numbers of businesses in Vietnam which have been forced to close because of the virus. REUTERS/Kham

Chef Dang Van Khu makes burgers shaped as coronavirus at a restaurant in Hanoi, Vietnam March 25, 2020. REUTERS/Kham

A burger shaped as coronavirus is seen at a restaurant in Hanoi, Vietnam March 25, 2020. REUTERS/Kham