Background: In 1992 a major vaccination strategy against measles-mumps-rubella was introduced in the State of Saão Paulo, Brazil. This strategy was based on mathematical models and comprised a pulse vaccination covering all children aged 1-10 years, followed by the inclusion of this vaccine in the routine calendar at 15 months of age. The present work reports the evaluation of the efficacy of this mixed vaccination strategy.

Methods: A rubella seroprevalence survey was carried out immediately and one year after the campaign, comprising 4953 children aged 1-15 years.

Results: We show that average rubella seroprevalence increased from 0.40 to 0.97 and that the reported number of congenital rubella syndrome (CRS) cases dropped dramatically.

Conclusions: The mixed vaccination strategy adopted against rubella has proved to be very effective in reducing the number of CRS cases in São Paulo.

Download full-text PDF

Source
http://dx.doi.org/10.1093/ije/24.4.842DOI Listing

Publication Analysis

Top Keywords

mixed vaccination
12
vaccination strategy
12
efficacy mixed
8
são paulo
8
paulo brazil
8
children aged
8
rubella seroprevalence
8
crs cases
8
vaccination
5
rubella
5

Similar Publications

Background And Objectives: The study aimed to identify key drivers of vaccine hesitancy among healthcare workers (HCWs) employed at Long-term care facilities (LTCF) within selected states. It also sought to determine which interventions, policies, and programs effectively reduced HCW vaccine hesitancy for COVID-19 and influenza.

Research Design And Methods: The study employed a mixed methods approach, combining secondary analysis of the Behavioral Risk Factor Surveillance System (BRFSS) data, survey research, and focus groups.

View Article and Find Full Text PDF

Background: We evaluated UK nurses' preferences for pediatric hexavalent vaccine attributes.

Research Design And Methods: In a discrete-choice experiment study, 150 nurses chose between 2 hypothetical pediatric hexavalent vaccines with varying attribute levels (device type, plastic in packaging, time on the market, and time the vaccine can stay safely at room temperature) in a series of choice questions. Using random-parameters logit-model estimates, conditional relative attribute importance (CRAI) and odds ratios (ORs) were calculated.

View Article and Find Full Text PDF

Examining the co-circulation of various serotypes and finding serotypes linked to illness severity were the main objectives of this study, which sought to investigate the epidemiology and serotype distribution of dengue in Haryana, North India. The cross-sectional study, which was carried out in a tertiary care hospital between September 2021 and April 2023, enrolled participants who met WHO criteria for probable dengue fever. Blood samples underwent molecular and serological diagnostics, such as immunochromatographic testing, VIDAS® Dengue NS1 assays, and TRUPCR® Dengue Detection and serotyping kits, in addition to the collection of clinical and demographic data.

View Article and Find Full Text PDF

Role of PEGylated lipid in lipid nanoparticle formulation for in vitro and in vivo delivery of mRNA vaccines.

J Control Release

January 2025

Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore 138668, Republic of Singapore. Electronic address:

mRNA-loaded lipid nanoparticles (mRNA-LNPs) hold great potential for disease treatment and prevention. LNPs are normally made from four lipids including ionizable lipid, helper lipid, cholesterol, and PEGylated lipid (PEG-lipid). Although PEG-lipid has the lowest content, it plays a crucial role in the effective delivery of mRNA-LNPs.

View Article and Find Full Text PDF

Background: The Somali region in Ethiopia has poor health infrastructure, coupled with the adversity experienced by the largely pastoralist population through frequent droughts, disease outbreaks and conflict. From January 2019, MSF strategically focused on improving access to primary healthcare in the Doolo zone of the Somali region by providing 15-20 mobile clinics covering a wide geographical area. We aimed to evaluate the extent to which mobile clinics were an appropriate and effective modality to deliver healthcare for populations living in the region.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!