Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Has COVID-19 Affected DTP Vaccination Trends in Africa? A Joinpoint Regression Analysis Reveals the Impact

Ines Aguinaga-Ontoso
* ORCID logo ,
Sara Guillen-Aguinaga
ORCID logo ,
Laura Guillen-Aguinaga
,
Rosa Alas-Brun
,
Luc Onambele
,
Enrique Aguinaga-Ontoso
,
Francisco Guillen-Grima
*
Version 1 : Received: 30 April 2023 / Approved: 1 May 2023 / Online: 1 May 2023 (03:49:11 CEST)

A peer-reviewed article of this Preprint also exists.

Aguinaga-Ontoso, I.; Guillen-Aguinaga, S.; Guillen-Aguinaga, L.; Alas-Brun, R.; Onambele, L.; Aguinaga-Ontoso, E.; Guillen-Grima, F. COVID-19 Impact on DTP Vaccination Trends in Africa: A Joinpoint Regression Analysis. Vaccines 2023, 11, 1103. Aguinaga-Ontoso, I.; Guillen-Aguinaga, S.; Guillen-Aguinaga, L.; Alas-Brun, R.; Onambele, L.; Aguinaga-Ontoso, E.; Guillen-Grima, F. COVID-19 Impact on DTP Vaccination Trends in Africa: A Joinpoint Regression Analysis. Vaccines 2023, 11, 1103.

Abstract

: Background: Vaccine-related death is one of the leading causes of death among African Children. Vaccine coverage is a very important measure to decrease infant mortality. Covid-19 Pandemic has affected the healthcare system and may have disrupted vaccine coverage. Methods: DTP third doses (DTP3) Vaccine Coverage was extracted from UNICEF databases from 2012 to 2021( the last available date). Joinpoint regression was performed to detect the point where the trend changed. The annual percentage change (APC) with 95% confidence intervals (95% CI) was calculated for Africa and the regions. We compared DTP3 vaccination coverage in 2019 with 2021 in each country to verify compliance with WHO targets. Result: During the whole period, the vaccine coverage in Africa has increased with an Annual Percent change of 1.2% (IC 95% 0.9-1.5): We detected one Joint point in 2019. In 2019-2021, there was a decrease in DTP3 coverage with an APC of -3.5(95% -6.0;-0,9). (P< 0.001). Vaccination rates have decreased in many regions and countries during the last two years. Conclusions. COVID-19 has disrupted vaccine coverage, decreasing it all over Africa.

Keywords

DTP vaccine,; Africa; COVID-19; Vaccine coverage; Joinpoint regression; Health care system; Vaccination rates

Subject

Public Health and Healthcare, Health Policy and Services

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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