Oklahoma HMO encourages seniors to prevent flu, colds by washing hands Thu, 11/28/2019 - 12:00am With cold and flu season in full swing, Oklahoma seniors are more at risk of getting sick this winter due ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about Oklahoma HMO encourages seniors to prevent flu, colds by washing hands