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Tostrud L, Thelen J, Palatnik A. Models of determinants of COVID-19 vaccine hesitancy in non-pregnant and pregnant population: Review of current literature". Hum Vaccin Immunother 2022; 18:2138047. [PMID: 36345571 PMCID: PMC9746492 DOI: 10.1080/21645515.2022.2138047] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/26/2022] [Accepted: 10/15/2022] [Indexed: 11/09/2022] Open
Abstract
Vaccination has proven to be the most effective tool in controlling the COVID-19 pandemic. While pregnant individuals are considered to be a high-risk population and are more likely to experience adverse effects from COVID-19, vaccination rates among pregnant individuals are significantly lower than in the general population. The Health Belief Model (HBM), Theory of Planned Behavior (TPB), 3C model, 5C model, and 5A model have been used to assess vaccination hesitancy behaviors. In this paper, we review the use of each of these models to address vaccine hesitancy, with a focus on the pregnant population and the COVID-19 vaccine. The HBM, TPB, 3C model, and 5C model have demonstrated great versatility in their ability to evaluate, explain, and modify vaccine hesitancy and behavior. Up to date, the HBM and 3C models appear to be the most effective models to study and address vaccination hesitancy within the pregnant persons.
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Affiliation(s)
- Lauren Tostrud
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Julia Thelen
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Anna Palatnik
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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Mahachi K, Kessels J, Boateng K, Jean Baptiste AE, Mitula P, Ekeman E, Nic Lochlainn L, Rosewell A, Sodha SV, Abela-Ridder B, Gabrielli AF. Zero- or missed-dose children in Nigeria: Contributing factors and interventions to overcome immunization service delivery challenges. Vaccine 2022; 40:5433-5444. [PMID: 35973864 PMCID: PMC9485449 DOI: 10.1016/j.vaccine.2022.07.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 06/11/2022] [Accepted: 07/24/2022] [Indexed: 11/28/2022]
Abstract
'Zero-dose' refers to a person who does not receive a single dose of any vaccine in the routine national immunization schedule, while 'missed dose' refers to a person who does not complete the schedule. These peopleremain vulnerable to vaccine-preventable diseases, and are often already disadvantaged due to poverty, conflict, and lack of access to basic health services. Globally, more 22.7 million children are estimated to be zero- or missed-dose, of which an estimated 3.1 million (∼14 %) reside in Nigeria.We conducted a scoping review tosynthesize recent literature on risk factors and interventions for zero- and missed-dosechildren in Nigeria. Our search identified 127 papers, including research into risk factors only (n = 66); interventions only (n = 34); both risk factors and interventions (n = 18); and publications that made recommendations only (n = 9). The most frequently reported factors influencing childhood vaccine uptake were maternal factors (n = 77), particularly maternal education (n = 22) and access to ante- and perinatal care (n = 19); heterogeneity between different types of communities - including location, region, wealth, religion, population composition, and other challenges (n = 50); access to vaccination, i.e., proximity of facilities with vaccines and vaccinators (n = 37); and awareness about immunization - including safety, efficacy, importance, and schedules (n = 18).Literature assessing implementation of interventions was more scattered, and heavily skewed towards vaccination campaigns and polio eradication efforts. Major evidence gaps exist in how to deliver effective and sustainable routine childhood immunization. Overall, further work is needed to operationalise the learnings from these studies, e.g. through applying findings to Nigeria's next review of vaccination plans, and using this summary as a basis for further investigation and specific recommendations on effective interventions.
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Affiliation(s)
- Kurayi Mahachi
- College of Public Health, University of Iowa, Iowa City, Iowa, United States
| | | | - Kofi Boateng
- Nigeria Country Office, World Health Organization, Abuja, Nigeria
| | | | - Pamela Mitula
- Inter-Country Support Team, Regional Office for Africa, World Health Organization, Ouagadougou, Burkina Faso
| | - Ebru Ekeman
- Department of Immunization, Vaccines and Biologicals (IVB), World Health Organization, Geneva, Switzerland
| | - Laura Nic Lochlainn
- Department of Immunization, Vaccines and Biologicals (IVB), World Health Organization, Geneva, Switzerland
| | - Alexander Rosewell
- Department of Immunization, Vaccines and Biologicals (IVB), World Health Organization, Geneva, Switzerland
| | - Samir V Sodha
- Department of Immunization, Vaccines and Biologicals (IVB), World Health Organization, Geneva, Switzerland
| | - Bernadette Abela-Ridder
- Department of Control of Neglected Tropical Diseases (NTD), World Health Organization, Geneva, Switzerland
| | - Albis Francesco Gabrielli
- Department of Control of Neglected Tropical Diseases (NTD), World Health Organization, Geneva, Switzerland.
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