The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon

<b>Background</b>: The third round of the global pulse survey demonstrated that the abrupt and rapid progression of the COVID-19 pandemic significantly disrupted childhood immunization in many countries. Although Cameroon has reported over 120,000 COVID-19 cases, the reported national ch...

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Main Authors: Yauba Saidu, Pietro Di Mattei, Sangwe Clovis Nchinjoh, Nnang Nadege Edwige, Bernard Nsah, Nkwain Jude Muteh, Shalom Tchokfe Ndoula, Rakiya Abdullahi, Chen Stein Zamir, Andreas Ateke Njoh, Amani Adidja, Sidy Ndiaye, Owens Wiwa, Emanuele Montomoli, Sue Ann Costa Clemens
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/11/3/645
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author Yauba Saidu
Pietro Di Mattei
Sangwe Clovis Nchinjoh
Nnang Nadege Edwige
Bernard Nsah
Nkwain Jude Muteh
Shalom Tchokfe Ndoula
Rakiya Abdullahi
Chen Stein Zamir
Andreas Ateke Njoh
Amani Adidja
Sidy Ndiaye
Owens Wiwa
Emanuele Montomoli
Sue Ann Costa Clemens
author_facet Yauba Saidu
Pietro Di Mattei
Sangwe Clovis Nchinjoh
Nnang Nadege Edwige
Bernard Nsah
Nkwain Jude Muteh
Shalom Tchokfe Ndoula
Rakiya Abdullahi
Chen Stein Zamir
Andreas Ateke Njoh
Amani Adidja
Sidy Ndiaye
Owens Wiwa
Emanuele Montomoli
Sue Ann Costa Clemens
author_sort Yauba Saidu
collection DOAJ
description <b>Background</b>: The third round of the global pulse survey demonstrated that the abrupt and rapid progression of the COVID-19 pandemic significantly disrupted childhood immunization in many countries. Although Cameroon has reported over 120,000 COVID-19 cases, the reported national childhood vaccination coverage during the pandemic seems to have increased compared to that during the pre-COVID-19 period. Indeed, the first dose of the diphtheria, tetanus, and pertussis-containing vaccine (DTP-1) coverage increased from 85.4% in 2019 to 87.7% in 2020, and DTP-3 coverage increased from 79.5% in 2019 to 81.2% in 2020. The paucity of literature on the impact of COVID-19 on childhood vaccination in COVID-19 hotspot regions poses a challenge in developing a context-specific immunization recovery plan, hence the need to conduct this study. <b>Methodology</b>: We conducted a cross-sectional study using 2019 (pre-pandemic period) and 2020 (pandemic period) district childhood immunization data from the DHIS-2 database, weighted using completeness for each data entry against regional data completeness in 2020. Based on COVID-19 incidence, two hotspot regions were selected, with all districts (56/56) included in the final analysis. The Chi-square test was used to compare DTP-1 and DTP-3 coverage during the pre-pandemic and pandemic periods. <b>Results</b>: In the two hotspot regions, 8247 children missed DTP-1, and 12,896 children did not receive DTP-3 vaccines in the pandemic period compared to the results from the pre-pandemic period. Indeed, there was a significant drop in DTP-1 and DTP-3 coverage of 0.8% (<i>p</i> = 0.0002) and 3.1% (<i>p</i> = 0.0003), respectively, in the Littoral Region. Moreover, the Centre Region reported a 5.7% (<i>p</i> < 0.0001) and 7.6% (<i>p</i> < 0.0001) drop in DTP-1 and DTP-3 coverage, respectively. Most districts in the hotspot regions reported a decline in childhood immunization access (62.5%) and utilization (71.4%). Indeed, in the Littoral Region, 46% (11/24) and 58% (14/24) of districts experienced decreased vaccination access and utilization, respectively. Meanwhile, 75% (24/32) and 81% (26/32) of districts in the Centre Region experienced a drop in vaccination access and utilization, respectively. <b>Conclusion</b>: This study reported a situation where the national immunization indicators mask the impact of COVID-19 on childhood immunization in heavily hit regions. Therefore, this study presents valuable information for ensuring continuous vaccination service delivery during public health emergencies. The findings could also contribute to developing an immunization recovery plan and informing policy on future pandemic preparedness and response.
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spelling doaj.art-d8a098fb1ae744e08b32895dde4077f32023-11-17T14:18:59ZengMDPI AGVaccines2076-393X2023-03-0111364510.3390/vaccines11030645The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in CameroonYauba Saidu0Pietro Di Mattei1Sangwe Clovis Nchinjoh2Nnang Nadege Edwige3Bernard Nsah4Nkwain Jude Muteh5Shalom Tchokfe Ndoula6Rakiya Abdullahi7Chen Stein Zamir8Andreas Ateke Njoh9Amani Adidja10Sidy Ndiaye11Owens Wiwa12Emanuele Montomoli13Sue Ann Costa Clemens14Clinton Health Access Initiative Inc., Yaounde P.O. Box 2664, CameroonGavi, The Vaccine Alliance, 1202 Geneva, SwitzerlandClinton Health Access Initiative Inc., Yaounde P.O. Box 2664, CameroonClinton Health Access Initiative Inc., Yaounde P.O. Box 2664, CameroonClinton Health Access Initiative Inc., Yaounde P.O. Box 2664, CameroonGavi, The Vaccine Alliance, 1202 Geneva, SwitzerlandExpanded Program on Immunization, Cameroon Ministry of Public Health, Yaounde P.O. Box 2084, CameroonGlobal Vaccine Team, Clinton Health Access Initiative Inc., Boston, MA 02127, USAFaculty of Medicine, The Hebrew University-Hadassah Braun School of Public Health and Community Medicine, Jerusalem 91120, IsraelExpanded Program on Immunization, Cameroon Ministry of Public Health, Yaounde P.O. Box 2084, CameroonFaculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaounde B.P. 337, CameroonRegional Office for Africa, World Health Organization, Brazzaville P.O. Box 06, CongoClinton Health Access Initiative Inc., Yaounde P.O. Box 2664, CameroonInstitute for Global Health, University of Siena, 53100 Siena, ItalyInstitute for Global Health, University of Siena, 53100 Siena, Italy<b>Background</b>: The third round of the global pulse survey demonstrated that the abrupt and rapid progression of the COVID-19 pandemic significantly disrupted childhood immunization in many countries. Although Cameroon has reported over 120,000 COVID-19 cases, the reported national childhood vaccination coverage during the pandemic seems to have increased compared to that during the pre-COVID-19 period. Indeed, the first dose of the diphtheria, tetanus, and pertussis-containing vaccine (DTP-1) coverage increased from 85.4% in 2019 to 87.7% in 2020, and DTP-3 coverage increased from 79.5% in 2019 to 81.2% in 2020. The paucity of literature on the impact of COVID-19 on childhood vaccination in COVID-19 hotspot regions poses a challenge in developing a context-specific immunization recovery plan, hence the need to conduct this study. <b>Methodology</b>: We conducted a cross-sectional study using 2019 (pre-pandemic period) and 2020 (pandemic period) district childhood immunization data from the DHIS-2 database, weighted using completeness for each data entry against regional data completeness in 2020. Based on COVID-19 incidence, two hotspot regions were selected, with all districts (56/56) included in the final analysis. The Chi-square test was used to compare DTP-1 and DTP-3 coverage during the pre-pandemic and pandemic periods. <b>Results</b>: In the two hotspot regions, 8247 children missed DTP-1, and 12,896 children did not receive DTP-3 vaccines in the pandemic period compared to the results from the pre-pandemic period. Indeed, there was a significant drop in DTP-1 and DTP-3 coverage of 0.8% (<i>p</i> = 0.0002) and 3.1% (<i>p</i> = 0.0003), respectively, in the Littoral Region. Moreover, the Centre Region reported a 5.7% (<i>p</i> < 0.0001) and 7.6% (<i>p</i> < 0.0001) drop in DTP-1 and DTP-3 coverage, respectively. Most districts in the hotspot regions reported a decline in childhood immunization access (62.5%) and utilization (71.4%). Indeed, in the Littoral Region, 46% (11/24) and 58% (14/24) of districts experienced decreased vaccination access and utilization, respectively. Meanwhile, 75% (24/32) and 81% (26/32) of districts in the Centre Region experienced a drop in vaccination access and utilization, respectively. <b>Conclusion</b>: This study reported a situation where the national immunization indicators mask the impact of COVID-19 on childhood immunization in heavily hit regions. Therefore, this study presents valuable information for ensuring continuous vaccination service delivery during public health emergencies. The findings could also contribute to developing an immunization recovery plan and informing policy on future pandemic preparedness and response.https://www.mdpi.com/2076-393X/11/3/645COVID-19 impactchildhood vaccinationCameroon
spellingShingle Yauba Saidu
Pietro Di Mattei
Sangwe Clovis Nchinjoh
Nnang Nadege Edwige
Bernard Nsah
Nkwain Jude Muteh
Shalom Tchokfe Ndoula
Rakiya Abdullahi
Chen Stein Zamir
Andreas Ateke Njoh
Amani Adidja
Sidy Ndiaye
Owens Wiwa
Emanuele Montomoli
Sue Ann Costa Clemens
The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
Vaccines
COVID-19 impact
childhood vaccination
Cameroon
title The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
title_full The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
title_fullStr The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
title_full_unstemmed The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
title_short The Hidden Impact of the COVID-19 Pandemic on Routine Childhood Immunization Coverage in Cameroon
title_sort hidden impact of the covid 19 pandemic on routine childhood immunization coverage in cameroon
topic COVID-19 impact
childhood vaccination
Cameroon
url https://www.mdpi.com/2076-393X/11/3/645
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