ArticleBMJ open2022
Impact of the COVID-19 pandemic on vaccine coverage for early childhood vaccines in Alberta, Canada: a population-based retrospective cohort study.
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.
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Who cites it
25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.
- The influence of the COVID-19 pandemic on measles vaccination coverage.Cadernos de saude publica · 2025Pooled it
- Impact of COVID-19 on vaccine confidence and uptake: A systematic literature review.Human vaccines & immunotherapeutics · 2024Pooled it
- Absorbing the shock: the role of lower-level health facilities in immunization resilience in Sidama, Ethiopia during COVID-19 pandemic.BMC health services research · 2026Article
- Long-term impact of the COVID-19 pandemic on childhood vaccination coverage in Quebec, Canada: A cohort study from the Canadian immunization research network.Preventive medicine reports · 2026Article
- Routine vaccination coverage at ages 2 and 7, before, during, and after the COVID-19 pandemic: Results from the STARVAX surveillance system.Canadian journal of public health = Revue canadienne de sante publique · 2025Article
- COVID-19 and Completion of Select Routine Childhood Vaccinations.Pediatrics · 2025Article
- Childhood vaccination trends during 2019 to 2022 in Tanzania and the impact of the COVID-19 pandemic.Human vaccines & immunotherapeutics · 2024Article
- Exploring the impact of the COVID-19 pandemic on perceptions of national scheduled childhood vaccines among Māori and Pacific caregivers, whānau, and healthcare professionals in Aotearoa New Zealand.Human vaccines & immunotherapeutics · 2024Article
- COVID-19 Vaccine Hesitancy Among Pediatric Oncology and Bone Marrow Transplant Patients.Vaccines · 2024Article
- Assessing the impact of the COVID-19 pandemic on childhood vaccine uptake with administrative data.SSM - population health · 2024Article
- Development and evaluation of virtual simulation games to increase the confidence and self-efficacy of healthcare learners in vaccine communication, advocacy, and promotion.BMC medical education · 2024Article
- "You can push these conversations, but don't push your patient away": healthcare learner perspectives on virtual simulation games as an educational approach to address vaccine hesitancy.Frontiers in public health · 2024Article
- Evaluating the impact of COVID-19 on routine childhood immunizations coverage in Zambia.PLOS global public health · 2024Article
- "It's not that I don't trust vaccines, I just don't think I need them": Perspectives on COVID-19 vaccination.PloS one · 2024Article
- Routine childhood vaccination among ethnocultural groups in Canada during the COVID-19 pandemic: A national cross-sectional study.Preventive medicine reports · 2023Article
- Effectiveness of a vaccine recovery plan after the COVID-19 pandemic in the Siracusa Local Health Authority, Italy. Results of one year follow-up.Journal of preventive medicine and hygiene · 2023Article
- Impact of pandemics and disruptions to vaccination on infectious diseases epidemiology past and present.Human vaccines & immunotherapeutics · 2023Review
- Article
- Changes in the Incidence of Invasive Pneumococcal Disease in Calgary, Canada, during the SARS-CoV-2 Pandemic 2020-2022.Microorganisms · 2023Article
- Change in Rotavirus Vaccine Coverage in Brazil from before (2015-2019) through the COVID-19 Pandemic Period (2020-2021).Viruses · 2023Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo assess the impact of the COVID-19 pandemic on early childhood vaccination coverage in Alberta, Canada.
settingAlberta, a western Canadian province, which has a population of 4.4 million and approximately 50 000 births annually.
designIn this retrospective cohort study, population-based administrative health data were analysed to determine the vaccination coverage for measles-containing, pertussis-containing and rotavirus vaccines. PRIMARY OUTCOME MEASURE: We measured monthly and cumulative vaccine coverage. We assessed the absolute difference in monthly and cumulative coverage for each vaccine dose by comparing children due for vaccination in each month of 2019 and 2020, with follow-up to determine if missed doses were caught up later.
participantsWe included 114 178 children in the 2019 analysis cohort and 106 530 children in the 2020 analysis cohort.
resultsMonthly vaccination coverage in 2020 was higher than 2019 until March, when coverage significantly declined. Comparing April 2020 to 2019, coverage was 9.9% (95% CI 7.9% to 12.0%) lower for measles vaccine; 4.9% (95% CI 3.3% to 6.5%), 7.1% (95% CI 5.2% to 9.1%), 5.2% (95% CI 3.1% to 7.4%) and 8.8% (95% CI 6.6% to 10.9%) lower for first, second, third and fourth doses of pertussis-containing vaccine, respectively; and 4.0% (95% CI 2.3% to 5.7%), 7.1% (95% CI 5.1% to 9.2%) and 4.6% (95% CI 2.4% to 6.7%) lower for first, second and third doses of rotavirus vaccine, respectively. Monthly coverage improved during May to July 2020; however, some doses experienced a second decline during September to October 2020. The cumulative coverage analysis showed that the measles-containing vaccine had the largest difference in coverage at the end of follow-up.
conclusionsChildren who were due for vaccination early in the pandemic and in Fall 2020, especially those due for measles vaccination, may require additional catch-up.
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