The United States set a daily record of 75,600 new cases Thursday, the 11th time in the past month that the record had been broken. The previous single-day record, 68,241 cases, was announced last Friday. Deaths are also increasing. Florida on Thursday reported 156 new fatalities, its highest number. It was one of 10 states to reach a record for deaths in a single day this week, joining Alabama, Arizona, Hawaii, Idaho, Montana, Oregon, South Carolina, Texas and Utah.