Impact of the SARS-CoV-2 Pandemic on Routine Immunization Services: Evidence of Disruption and Recovery from 169 Countries and Territories
SSRN, ISSN: 1556-5068
2021
- 21Citations
- 1,240Usage
- 7Captures
Metric Options: Counts1 Year3 YearSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Background: The SARS-CoV-2 pandemic has revealed the vulnerability of immunization systems worldwide, although the scale of these disruptions has not been described at a global level. Methods: This report synthesized data representing 169 countries and territories. Data sources included administered vaccine dose data from January-December 2019 and 2020, WHO Regional office reports, and the WHO-led pulse survey administered in April and June 2020. Results were expressed as frequencies and proportions of respondents or reporting countries. Vaccine doses administered data were weighted by the population of surviving infants per country. Findings: A decline in the number of DTP3 and MCV1 doses administered in the first half of 2020 was noted. The nadir was observed in April 2020, when 35% fewer DTP3 doses were administered globally, ranging from 10% in Africa to 58% in South East Asia. Recovery of vaccinations began by June 2020 and continued into late 2020. WHO regional offices reported significant disruption to routine vaccination sessions in April 2020, related to interrupted vaccination demand, and supply, including reduced availability of the health workforce. Pulse survey analysis revealed that 69% of countries experienced disruption in outreach services compared to 44% countries with disrupted fixed-post immunization services. Interpretation: The marked magnitude and global scale of immunization disruption evokes the dangers of vaccine-preventable disease outbreaks in the future. Trends indicating partial resumption of services highlight the urgent need for ongoing assessment of recovery, catch-up vaccination strategy implementation for vulnerable populations, and ensuring vaccine coverage equity and health system resilience. Funding: World Health Organization and U.S. Agency for International Development (USAID). Conflict of Interest: We declare no competing interests.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85109897077&origin=inward; http://dx.doi.org/10.2139/ssrn.3850009; https://www.ssrn.com/abstract=3850009; https://dx.doi.org/10.2139/ssrn.3850009; https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3850009; https://ssrn.com/abstract=3850009
Elsevier BV
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know