Adverse Events and Immunization Errors Following a Mass Immunization Campaignwith TAK-003 in Dourados, Brazil: A Post-Marketing Safety Surveillance Analysis.

ABSTRACT: This descriptive observational study based on post-marketing surveillance data evaluates adverse events following immunization (AEFI) associated with the TAK-003 (Qdenga®) vaccine. Conducted in Dourados, Brazil, between January and November 2024, the study aimed to assess the frequency, nature, and severity of AEFI to inform public health strategies. Secondary data were obtained from the e-SUS Notifica system, including demographic information, vaccination dates, and details of AEFI, which encompassed immunization errors and adverse events. These adverse events were classified by severity, type, and temporal distribution. Statistical analysis included incidence rates, temporal trends, and correlation analyses using SPSS software. Among 124,483 administered doses, 88 AEFI were reported, yie

SUBMITTER: Anschau LCK 

PROVIDER: S-EPMC12560204 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature