TUESDAY UPDATES: Boone County reports largest new coronavirus case jump since April 22 KMIZ The Columbia/Boone County Department of Public Health and Human Services is reporting 16 new COVID-19 cases. There are currently 66 active cases in the county. The county continues to trend down as there have been 103 straight days of single or double-digit case increases. The health department is reporting two Boone County residents are in the hospital due to the coronavirus. Columbia/Boone County Department of Public Health and Human Services May 11 dashboard The Missouri coronavirus vaccine dashboard reports that 81,545 residents have received their first dose in Boone County and 69,380 Boone County residents have completed their vaccine doses.