Feb. 17, 2021 Lt. Col. Joann Shoffner, left, and Maj. Mary Kehl of the Arizona Army National Guard fill syringes with COVID-19 vaccine Feb. 9 in Phoenix. Health officials say Arizonans who have received the first dose should be able to get the second, despite the delivery delays. (Photo by Tech. Sgt. Michael Matkin/U.S. Air National Guard) PHOENIX – Winter storms engulfing much of the U.S. are delaying shipments of COVID-19 vaccines and supplies, forcing delays to long-awaited appointments for some residents of Arizona. The delays are the latest obstacle for health officials in the COVID-19 vaccination rollout, which has had to overcome misinformation, skepticism and ongoing scheduling issues.