An estimated 350,000 displaced people across Myanmar are "sitting in the path of a public health catastrophe", says rights group Human Rights Watch (HRW).Overcrowding, movement restrictions and poor sanitation have left these groups especially vulnerable to the coronavirus outbreak, HRW said.
Myanmar had its first infections last week and its first death on Monday, reports BBC.
A government official had previously claimed the country's "lifestyle and diet" protected its people.
Myanmar, which is home to around 51 million people, has a poor healthcare system.
A large percentage of the population does not have access to even basic healthcare, Associate Professor Nehginpao Kipgen of the Jindal School of International Affairs told BBC News - much less those who are displaced.
People living in camps often struggle to get even basic access to clean water and other essential services.