An Arkansas jail and its health-care provider are facing criticisms of “medical experimentation” because the jail’s medical staff has been treating covid-19 patients with ivermectin, a drug commonly used for deworming livestock. Washington County Justice of the Peace Eva Madison (D) said she heard reports of the practice Tuesday after a county employee visited a Karas Health Care coronavirus testing site at the Washington County Detention Center in Fayetteville and was prescribed ivermectin despite testing negative for the coronavirus. Karas is one of three health-care providers accessible to employees on the county health-care plan. It operates in the jail as...