Chief Petty Officer Mary Zepeda is administered the first coronavirus (COVID-19) vaccination at Base Alameda medical clinic in Alameda, Calif., Dec. 16, 2020. Coast Guard efforts to vaccinate its workforce, in collaboration with DoD, will be complementary to a parallel effort by states, territories, and localities, as vaccine supply allows. U.S. Coast Guard photos by Chief Petty Officer Matt Masaschi.