At the beginning of March, the Rohingya and Somali refugees housed at the Pelangi Hotel in Medan, in the Indonesian province of North Sumatra, received a visit from an International Organisation for Migration (IOM) representative. There was a deadly virus on the loose, the representative said, one which was already strangling China, Iran and Italy. Good hand washing was essential, the refugees were told, as was social distancing. The refugees, many of whom came to Indonesia more than nine…