This has been true not only of ICE detention centers but of the US prison/jail system generally. It is interesting how the media only reports on this stuff selectively, mostly to get some anti-Trump mileage out of it.  After Biden is elected, if that happens, there will likely be no more mention of this.

CBS News

An investigation by The New York Times and the Marshall Project reveals how unsafe conditions and scattershot testing helped turn the U.S. Immigration and Customs Enforcement agency into a worldwide spreader of the virus. Emily Kassie, the director of visual projects for the Marshall Project, joins CBSN to discuss conditions in ICE detention centers and how the Trump administration pressured other countries to take in sick deportees.

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