Senior Robert Padilla, 30th Health Care Operations Squadron aerospace medical technician, gives Col. Anthony Mastalir, 30th Space Wing commander, his annual flu shot Sept. 25, 2020, at Vandenberg Air Force Base, Calif. It’s likely that flu viruses, and the virus that causes COVID-19, will spread during the fall and winter months. The best way to prevent seasonal flu is to get vaccinated every year. (U.S. Space Force photo by Staff Sgt. Brittany E. N. Murphy)