Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review

Abstract Background Despite vaccine availability, Pertussis remains a global public health challenge, especially among infants. The Eastern Mediterranean Region (EMR) presents a diverse epidemiological landscape with varying vaccination coverages and healthcare infrastructures. This systematic revie...

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Main Authors: Randa K. Saad, Yousef Khader, Flor M. Munoz, Faris Lami, Ezzeddine Mohsni, Nadine Haddad
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Public Health
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Online Access:https://doi.org/10.1186/s12889-025-21329-y
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author Randa K. Saad
Yousef Khader
Flor M. Munoz
Faris Lami
Ezzeddine Mohsni
Nadine Haddad
author_facet Randa K. Saad
Yousef Khader
Flor M. Munoz
Faris Lami
Ezzeddine Mohsni
Nadine Haddad
author_sort Randa K. Saad
collection DOAJ
description Abstract Background Despite vaccine availability, Pertussis remains a global public health challenge, especially among infants. The Eastern Mediterranean Region (EMR) presents a diverse epidemiological landscape with varying vaccination coverages and healthcare infrastructures. This systematic review aimed to assess the burden of pertussis in infants < 1 year of age in the EMR and evaluate the use and impact of pertussis vaccination during pregnancy. Methods Following PRISMA guidelines, we conducted a systematic search of Scopus, Embase, CINAHL Ultimate, and PubMed from inception until April 30, 2024. Studies included reported on pertussis burden in infants or maternal vaccination. Data extraction and quality assessment were performed in duplicate, focusing on incidence, age distribution, disease severity, and vaccination uptake and impact when data were available. Results Thirty-six studies were included, the majority from Iran (N = 11), Morocco (N = 5), Tunisia (N = 5), and Oman (N = 3), with underrepresentation of other EMR countries. The incidence of PCR-confirmed pertussis among children with suspected pertussis varied significantly, from 6.7% to 8.9% (Morocco 2018–2019) to 50.4% and 51.6% (Palestine 2004–2008) among children < 12 and < 6 months, respectively, and between 16.3% (Tunisia 2007–2016) to 73.0% (Morocco 2013–2015) in children < 2 months. Age distribution data indicated the highest burden was in infants < 2 months regardless of the population studied. High hospitalization rates and severe complications, including seizures and the need for ventilatory support, were frequently reported in infants < 6 months of age. Only one study from Saudi Arabia addressed maternal pertussis vaccination, reflecting low vaccine uptake and awareness among pregnant women. Conclusions This review underscores the substantial burden of pertussis among infants in the EMR and the lack of data on maternal immunization. The findings emphasize the need for enhanced surveillance and targeted public health interventions to reduce disease incidence. Future research should prioritize underrepresented countries to ensure comprehensive data for informed public health strategies. Trial registration PROSPERO (CRD42024573471)
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spelling doaj-art-f59bfd1b9dca4c6584a5476dc9c50dce2025-01-26T12:56:39ZengBMCBMC Public Health1471-24582025-01-0125112910.1186/s12889-025-21329-yBurden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic reviewRanda K. Saad0Yousef Khader1Flor M. Munoz2Faris Lami3Ezzeddine Mohsni4Nadine Haddad5Research and Policy, Center of Excellence for Applied Epidemiology, Global Health Development| Eastern Mediterranean Public Health NetworkDepartment of Community Medicine, Public Health, and Family Medicine, Faculty of Medicine, Jordan University of Science & TechnologyDepartments of Pediatrics and Molecular Virology and Microbiology, Baylor College of MedicineCollege of Medicine, Al Subtain University, University of BaghdadWHO retiree (Chair of WHO EMR RITAG)Polio and Immunization, Public Health Programs, Global Health Development| Eastern Mediterranean Public Health NetworkAbstract Background Despite vaccine availability, Pertussis remains a global public health challenge, especially among infants. The Eastern Mediterranean Region (EMR) presents a diverse epidemiological landscape with varying vaccination coverages and healthcare infrastructures. This systematic review aimed to assess the burden of pertussis in infants < 1 year of age in the EMR and evaluate the use and impact of pertussis vaccination during pregnancy. Methods Following PRISMA guidelines, we conducted a systematic search of Scopus, Embase, CINAHL Ultimate, and PubMed from inception until April 30, 2024. Studies included reported on pertussis burden in infants or maternal vaccination. Data extraction and quality assessment were performed in duplicate, focusing on incidence, age distribution, disease severity, and vaccination uptake and impact when data were available. Results Thirty-six studies were included, the majority from Iran (N = 11), Morocco (N = 5), Tunisia (N = 5), and Oman (N = 3), with underrepresentation of other EMR countries. The incidence of PCR-confirmed pertussis among children with suspected pertussis varied significantly, from 6.7% to 8.9% (Morocco 2018–2019) to 50.4% and 51.6% (Palestine 2004–2008) among children < 12 and < 6 months, respectively, and between 16.3% (Tunisia 2007–2016) to 73.0% (Morocco 2013–2015) in children < 2 months. Age distribution data indicated the highest burden was in infants < 2 months regardless of the population studied. High hospitalization rates and severe complications, including seizures and the need for ventilatory support, were frequently reported in infants < 6 months of age. Only one study from Saudi Arabia addressed maternal pertussis vaccination, reflecting low vaccine uptake and awareness among pregnant women. Conclusions This review underscores the substantial burden of pertussis among infants in the EMR and the lack of data on maternal immunization. The findings emphasize the need for enhanced surveillance and targeted public health interventions to reduce disease incidence. Future research should prioritize underrepresented countries to ensure comprehensive data for informed public health strategies. Trial registration PROSPERO (CRD42024573471)https://doi.org/10.1186/s12889-025-21329-yPertussisEastern Mediterranean RegionInfantsMaternal vaccinationTdapSystematic review
spellingShingle Randa K. Saad
Yousef Khader
Flor M. Munoz
Faris Lami
Ezzeddine Mohsni
Nadine Haddad
Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
BMC Public Health
Pertussis
Eastern Mediterranean Region
Infants
Maternal vaccination
Tdap
Systematic review
title Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
title_full Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
title_fullStr Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
title_full_unstemmed Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
title_short Burden of pertussis in infants in the Eastern Mediterranean Region and the impact of maternal vaccination: a systematic review
title_sort burden of pertussis in infants in the eastern mediterranean region and the impact of maternal vaccination a systematic review
topic Pertussis
Eastern Mediterranean Region
Infants
Maternal vaccination
Tdap
Systematic review
url https://doi.org/10.1186/s12889-025-21329-y
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