Emergency teams raced Friday to prevent a coronavirus “nightmare” in the world's largest refugee settlement after the first reported cases in the giant shanties, housing nearly one million members of the Rohingya community, AFP reports.

Health officials said three of the Muslim outcasts living in the 34 camps along the Bangladesh-Myanmar border have tested positive.

Special teams fanned out across the teeming camps trying to find anyone who had been in contact with the two men and a woman.

More than 700,000 people fled across the border after a 2017 Myanmar military crackdown on the Rohingya, who are now stuck in the camps, where there is barely room to move and sewage flows uncontrolled in the narrow alleys.