SANTA ANA, Calif.—Orange County’s COVID-19 hospitalizations remained unchanged, according to the latest data, one day after declining by 31 patients, providing growing evidence the Delta variant-fueled summer surge is receding. There were 252 people hospitalized with the virus in Orange County as of Sunday, down from 283 Friday, and the number of those patients in intensive care inched up from 71 to 72. The numbers have not been this low since July. The county has 22.9 percent of its intensive care unit beds available and 66 percent of its ventilators, according to the Orange County Health Care Agency (OCHCA). “I think hospitalizations are on a very slow descent,” Dr. Regina Chinsio-Kwong, deputy county health officer, said in a conference call with reporters Friday. “Overall, our case rates are coming down and our positivity so we’re going in the right direction.” As of Sept. 25, the case rate per 100,000 people …