Covid 19 - the threat to refugees

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Massively over crowded Moria refugee camp on the Greek island of Lesbos has seen numbers grow from 5 to 20 thousand in a matter of months. Hundreds of people share taps and toilets, there is little chance to implement measures designed to stop the spread of covid 19. So far the camp has not been hit by the epidemic, but aid agencies fear for the most vulnerable in the camp. Covid 19 jumped from bats to humans, possibly via another wild animal. A study of zoonotic diseases has identified many other viruses that could do the same. The skies are clearer, levels of pollution from traffic have dropped by up to 50 percent but how long will cleaner air remain? And Comet Borisov makes a spectacular exit. (Image: Moria refugee camp, Lesvos, Greece. Credit: Getty Images) Presenter: Roland Pease Producer: Julian Siddle