covid-19 vaccination in nigeria covid-19 vaccination in nigeria covid-19 vaccination in nigeria is an ongoing immunization campaign against severe acute respiratory syndrome coronavirus 2 (sars-cov-2), the virus that causes coronavirus disease 2019 (covid-19), in response to the ongoing pandemic in the country. vaccination began on 5 march 2021. as of 28 february 2022, 17,914,944 people have received their first dose a covid-19 vaccine, and 8,197,832 have received their second dose.