Vaccine-Preventable Disease Outbreaks

Suryadevara, Manika

doi:10.1007/978-3-030-58414-6_36

Cited by 3 publications

(3 citation statements)

References 73 publications

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“…However, our study, unlike other studies [42,44], further demonstrates that the national immunization trends do not necessarily mirror the subnational trends. This phenomenon may similarly explain why countries with high administrative MCV1 coverage estimates experience high measles outbreaks in some subnational units [46][47][48][49][50]. While numerous studies have centered on the effects of COVID-19 on routine childhood vaccination [50], there is limited information on geographic disparities in immunization service delivery [51], especially at the subnational level.…”

Section: Discussionmentioning

confidence: 99%

Vaccination Utilization and Subnational Inequities during the COVID-19 Pandemic: An Interrupted Time-Series Analysis of Administrative Data across 12 Low- and Middle-Income Countries

Mwinnyaa,

Peters,

Shapira

et al. 2023

Vaccines

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Background: During and after the SARS-CoV-2 (COVID-19) pandemic, many countries experienced declines in immunization that have not fully recovered to pre-pandemic levels. This study uses routine health facility immunization data to estimate variability between and within countries in post-pandemic immunization service recovery for BCG, DPT1, and DPT3. Methods: After adjusting for data reporting completeness and outliers, interrupted time series regression was used to estimate the expected immunization service volume for each subnational unit, using an interruption point of March 2020. We assessed and compared the percent deviation of observed immunizations from the expected service volume for March 2020 between and within countries. Results: Six countries experienced significant service volume declines for at least one vaccine as of October 2022. The shortfall in BCG service volume was ~6% (95% CI −1.2%, −9.8%) in Guinea and ~19% (95% CI −16%, 22%) in Liberia. Significant cumulative shortfalls in DPT1 service volume are observed in Afghanistan (−4%, 95% CI −1%, −7%), Ghana (−3%, 95% CI −1%, −5%), Haiti (−7%, 95% CI −1%, −12%), and Kenya (−3%, 95% CI −1%, −4%). Afghanistan has the highest percentage of subnational units reporting a shortfall of 5% or higher in DPT1 service volume (85% in 2021 Q1 and 79% in 2020 Q4), followed by Bangladesh (2020 Q1, 83%), Haiti (80% in 2020 Q2), and Ghana (2022 Q2, 75%). All subnational units in Bangladesh experienced a 5% or higher shortfall in DPT3 service volume in the second quarter of 2020. In Haiti, 80% of the subnational units experienced a 5% or higher reduction in DPT3 service volume in the second quarter of 2020 and the third quarter of 2022. Conclusions: At least one region in every country has a significantly lower-than-expected post-pandemic cumulative volume for at least one of the three vaccines. Subnational monitoring of immunization service volumes using disaggregated routine health facility information data should be conducted routinely to target the limited vaccination resources to subnational units with the highest inequities.

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Section: Discussionmentioning

confidence: 99%

Vaccination Utilization and Subnational Inequities during the COVID-19 Pandemic: An Interrupted Time-Series Analysis of Administrative Data across 12 Low- and Middle-Income Countries

Mwinnyaa,

Peters,

Shapira

et al. 2023

Vaccines

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“…Outbreaks of vaccine-preventable diseases (VPDs) are a growing international concern particularly in the context of the COVID-19 pandemic (Suryadevara, 2021;Gallant et al, 2021). As a result of these outbreaks there is an urgent need to focus on the development and evaluation of screening tools to identity those who may be hesitant about vaccine(s) and to inform interventions to increase vaccine uptake.…”

Section: Introductionmentioning

confidence: 99%

Improving older adults’ vaccination uptake: Are existing measures of vaccine hesitancy valid and reliable for older people?

et al. 2022

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We sought to establish whether two recently developed measures, the 5C scale and the Vaccination Attitudes Examination (VAX) were reliable and valid for use with older adults. A total of 372 UK-dwelling participants (65–92 years, M = 70.5 years, SD = 4.6) completed a cross-sectional survey measuring health and socio-demographic characteristics in relation to vaccine uptake for influenza, pneumococcal and shingles. The 5C and VAX scales were administered to test their reliability, validity and dimensionality. Both scales showed good internal reliability and convergent, discriminant and concurrent validity. Their factor structures were also confirmed, supporting their use with older adult populations.

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“…Outbreaks of vaccine-preventable diseases (VPDs) are a growing international concern particularly in the current COVID-19 pandemic (Suryadevara, 2021). As a result of these outbreaks there is an urgent need to focus on the development and evaluation of interventions to increase vaccine uptake to protect the expanding demographic of the older adult (aged ≥ 65 years) population (Privor-Dumm et al, 2020;Williams et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Improving older adults’ vaccination uptake: are existing measures of vaccine hesitancy valid and reliable for older people?

Cogan

Gallant

Nicholls

et al. 2021

Preprint

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Older adults are particularly vulnerable to vaccine-preventable diseases (VDU), due to decreased immunity and increased comorbidity. Vaccination can support healthy ageing and help reduce morbidity, mortality, and loss of quality of life associated with VPDs. Despite the availability of effective vaccines, many countries, including the UK, fail to reach recommended coverage levels. Psychosocial factors are recognised as providing important insights into the determinants of vaccination uptake. Little research has sought to establish psychometrically sound scales of vaccine attitudes with older adults. In the present study, a total of 372 UK-based participants (65-92 years, M = 70.5 yrs, SD = 4.6) completed a cross-sectional, online survey measuring health and socio-demographic characteristics in relation to vaccination uptake for influenza, pneumococcal and shingles. Two recently developed vaccination attitude scales, the 5C scale and the Vaccination Attitudes Examination (VAX) scale, were also administered to test their reliability and validity for use with an older adult population. Additional scales used to examine convergent and discriminant validity, the Beliefs about Medicines Questionnaire, the Perceived Sensitivity to Medicines Scale, the Medical Mistrust Index, the Perceived Stress Scale, and the Interpersonal Support Evaluation List, were included. The factor structure of the 5C and VAX scales was confirmed. Both scales showed good internal reliability, convergent, discriminant and concurrent validity, supporting their use with older adult populations. The 5C and VAX scales were found to be reliable and valid psychosocial measures of vaccine hesitancy and acceptance within a UK-based, older adult population. Future research could use these scales to evaluate the impact of psychological antecedents of vaccine uptake, and how concerns about vaccination may be understood and addressed among older adults.

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Vaccine-Preventable Disease Outbreaks

Cited by 3 publications

References 73 publications

Vaccination Utilization and Subnational Inequities during the COVID-19 Pandemic: An Interrupted Time-Series Analysis of Administrative Data across 12 Low- and Middle-Income Countries

Vaccination Utilization and Subnational Inequities during the COVID-19 Pandemic: An Interrupted Time-Series Analysis of Administrative Data across 12 Low- and Middle-Income Countries

Improving older adults’ vaccination uptake: Are existing measures of vaccine hesitancy valid and reliable for older people?

Improving older adults’ vaccination uptake: are existing measures of vaccine hesitancy valid and reliable for older people?

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