Gov. Mike DeWine said despite many Ohioans working hard to keep Covid-19 "in check, unfortunately, we are seeing a rebound in some areas of the state."
The governor announced 1,327 new Covid-19 cases on Thursday and said the daily positivity rate increased from 3% to 4%.
"We're watching that, we don't know whether that's a long-term trend or not, we certainly hope it is not," said DeWine.
Ohio health officials observed that 11 counties had a very high spread, or "red counties," which is more than what the state had in September, DeWine said during a coronavirus briefing on Thursday.
There were four counties added to the "red" list this week; including Clermont, Hamilton, Muskingum and Richland County.
DeWine shared several coronavirus cautionary stories, including one of a woman in her 80s who went to a neighboring state to bury her husband and contracted the virus from a funeral director who did not wear a mask; the woman died shortly after.
Ohio now has 155,314 coronavirus cases and 4,817 deaths, DeWine said.