Strategies for expanding vaccination coverage in children in Brazil: systematic literature review.
Janaina Fonseca Almeida Souza, Thales Philipe Rodrigues da Silva, Camila Kümmel Duarte and 3 others
PMID 39699356WHAT IT FOUND
Bolsa Família conditionalities did not improve child vaccination coverage overall; reminders raised completeness, and home-visit monitoring helped identify unvaccinated children.
Key findings
01Six included observational studies in Brazil reported vaccination strategies for children aged 0 to 6 years, and three studies on Bolsa Família found no overall improvement in coverage.
02A reminder sent through the child's agenda, with family guidance about vaccination status, raised vaccination completeness among delayed children from 81.5% to 93.1% in an early childhood education center.
03Home-visit monitoring and population monitoring helped identify unvaccinated children and areas with low vaccination coverage.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
Only six observational studies were included, and they used different sample sizes and locations, so the studies cannot be compared directly or pooled. The review included only studies done in Brazil, so the results may not apply to other vaccination systems. Some included studies were rated low methodological quality, mainly because of representativeness and comparability. The search was limited to PubMed, Embase and Scopus, so relevant studies in other databases may have been missed. The included studies were observational, so they cannot separate the effect of one strategy from other services, local context or concurrent actions.
The easy way to misread this
Do not read the reminder result as proof that reminders work everywhere. It came from a low-quality local study in a single early childhood education center.