Here's how the US handled its first ever monkeypox outbreak - Business Insider

The cases came from several states: Wisconsin had 39 cases; Indiana, 16; Illinois, 12; Missouri, 2; Kansas, 1; Ohio, 1. .

Some patients were exposed in premises where prairie dogs were kept, and others were exposed to persons with monkeypox," according to the archived CDC website. 

Contact tracers found that all 35 human cases of monkeypox were traced back to contact with prairie dogs obtained from an animal distributor in Illinois, according to the CDC. 

The prairie dogs from the Illinois distributor "appear to have been infected through contact with Gambian giant rats and dormice that originated in Ghana" and were purchased by the distributor, the CDC found at the time. 

The CDC also recommended animal euthanasia for all the rodents that came in contact with the infected shipment of prairie dogs, according to the archived CDC site. 

As of May 20, the UKHSA has detected 20 cases of monkeypox since May 6