December 2020: Nigeria runs polio vaccine drive as part of sub-national immunization days

From October 31 to November 24, Nigeria ran an oral polio vaccine drive as part of its sub-national immunization plus days campaign—reaching over 23 million children under 5 years old in Bauchi, Borno, Jigawa, Kaduna, Kano, Katsina, Kwara, Niger, Sokoto, Yobe and Zamfara. WHO