Missouri: Isle of Capri Casino visitor tests positive for COVID-19 Boonville Daily News · March 23, 2020 at 3:28 pm A person who visited the Isle of Capri in the hours before an order to close took effect tested positive for the novel coronavirus, the Cooper County Health Department stated in a news release. The person, who is not a resident of Cooper County, visited the gambling floor from approximately 9 a.m. to 11 a.m. on March 17, the release stated. The release did not state the visitor’s home state or county. Gov. Mike Parson, before issuing orders banning gatherings of more than 10 that took effect Monday, ordered all 13 casinos in Missouri to close at midnight March 17.