COVID-19 Mobile Testing returning to Grimes County Posted in: COVID-19News Grimes County will receive another round of COVID-19 mobile testing hosted by the Texas Department of Health and Human Services, Tuesday, May 19, from 8 a.m. till 5 p.m. at the Grimes County Fairgrounds. Test will be conducted by appointment only. Citizens will be screened for the following symptoms: fever/chills, cough,PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!