Map by The Marshall Project; click the image to enlarge it or click here for the interactive version.

Though prisons are a major vector for the novel coronavirus, some states are gradually easing restrictions on in-person visits from family and lawyers,

according to

The Marshall Project, a nonprofit journalism outlet focused on criminal justice. The story includes an interactive map and detailed updates for where each state's corrections systems stand.

The Marshall Project, in partnership with The Associated Press, also maintains

a frequently updated database

showing how many people have been sickened and/or died from covid-19 in prisons, both nationwide and within each state.

It should be noted that most of this data concerns state and federal prisons only, and not local jails. However, six states have unified prison and jail systems (Alaska, Connecticut, Delaware, Hawaii, Rhode Island, and Vermont) so in those cases, the data includes testing and case numbers from both pre-trial detainees and sentenced prisoners.