Two years of COVID-19 vaccination in Nigeria: a review of the current situation of the pandemic: a literature review

Abstract

Curtailing COVID-19 outbreaks has been the major focus for many countries following the onset of the COVID-19 pandemic. Nigeria expanded its effort with the commencement of its vaccination program against COVID-19 in March 2021 after several less effective interventions as vaccine introduction was implemented. Following the introduction of the vaccines, Nigeria is expected to meet the worldwide COVID-19 eradication target of vaccinating 40% and 70% of the population, respectively, by the end of 2021 and 2022. Nigeria was unable to meet the target at the commencement of the program. The low vaccination rate, attributed to a low acceptance rate of vaccines, a lack of access to vaccines, poor communication, a weak cold-chain system, and inadequate infrastructure in the country, resulted in the complete vaccination of only 15% of the Nigerian populace as of 21 September 2022. To improve the vaccination rate, the COVID-19 Crisis Communication Centre was launched. Also, the implementation of delivery of service, logistics, accountability, supportive supervision, communication, and electronic management of immunization data scaled the vaccination rate to more than 54% of the target populace as of December 2022. Since the introduction of the COVID-19 vaccine, a substantial change in the prevalence and mortality rate has been perceived owing to the country’s progress toward achieving herd immunity against COVID-19. The country ascertained the percentage of cumulative deaths before the vaccination process to be 60.4%, which was reduced to 39.6% post-vaccination. In comparison, the percentage of confirmed COVID-19 cases was reduced from 58.3 to 41.7% post-vaccination. The authors recommend that the government and relevant public health authorities ensure meticulous documentation of the outcomes resulting from vaccination initiatives and facilitate the accessibility of this information to the general public to boost the vaccination rate.