An Iraqi refugee holds his newborn in the overcrowded Moria camp on the island of Lesbos on March 7, 2020. - Over 1,700 migrants have landed on Lesbos and four other Aegean islands from Turkey over the past week, adding to the 38,000 already crammed into abysmal and overstretched refugee centres. (Photo by LOUISA GOULIAMAKI / AFP)
An Iraqi refugee holds his newborn in the overcrowded Moria camp on the Greek island of Lesbos where Covid-19 fears are at their most acute. AFP

Covid-19 could infect one billion in conflict states