Refugees and migrants wait to be transfered from the island of Lesbos to the Greek main land on May 3, 2020 in Moria. - Greece transferred some 10,000 people to the mainland between January and March but the figure dropped to 627 across April to date, prompting Human Rights Watch to warn of a potential health crisis if camp decongestion is not stepped up. (Photo by Manolis Lagoutaris / AFP) (Photo by MANOLIS LAGOUTARIS/AFP via Getty Images)