COVID-19 Information. If you have questions about COVID-19 not covered in the information below, the Ohio Department of Health has set up a call center at 1-833-4-ASK-ODH (1-833-427-5634).The ODH call center is open seven days a week from 9 a.m. - 8 p.m. and is staffed by licensed nurses and infectious disease experts who can help you determine the appropriate next steps..