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Nurses administer oral polio vaccine at Chansavang Health Centre near Vientiane, Lao PDR. The Partnership of Influenza Vaccine Introduction (PIVI), a project of The Task Force for Global Health, partnered with the Ministry of Health in Laos PDR to provide seasonal influenza vaccine for pregnant women and other high-risk groups during an immunization campaign that took place between Jan. 16-26, 2017. Photo date: Jan. 23, 2017. Photographer: Billy Weeks