A rapidly-spreading H5N1 avian influenza, otherwise known as bird flu, has been devastating bird flocks and showing signs of spreading to other mammals.

Roland, Cameron, Wister, and Maryetta districts in Oklahoma announced they’d hold virtual learning days on Friday, while others warned of increasing illness.

Last week, schools in the Tulsa area and Tuttle high school moved to virtual learning after a large number of students and staff fell ill.Fast forward a week l ...