Gov. Pete Ricketts is extending Nebraska’s current coronavirus restrictions through December as the number of residents hospitalized with the virus dipped below 900 for the first time in more than two weeks. The current restrictions require masks in certain businesses, such as salons and tattoo parlors, where it’s difficult to maintain 6 feet of distance between people. They had been set to expire Monday. Despite the decline in hospitalizations, hospitals remained strained across the state. Ricketts has faced growing pressure to impose a statewide mask mandate but has refused to do so, arguing that mandates breed resentment and may face resistance.