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Epidemiologia e Serviços de Saúde
versión impresa ISSN 1679-4974versión On-line ISSN 2237-9622
Resumen
GATTAS, Vera Lúcia et al. Adverse event occurrence following use of tetanus, diphtheria and acellular pertussis adsorbed vaccine – Tdap –, São Paulo, SP, Brazil, 2015-2016. Epidemiol. Serv. Saúde [online]. 2020, vol.29, n.2, e2019280. Epub 04-Mayo-2020. ISSN 1679-4974. http://dx.doi.org/10.5123/s1679-49742020000200027.
Objective
to describe occurrence of adverse events following immunization (AEFI) with Tdap vaccine during pregnancy.
Methods
this was a descriptive study using data from reports by participants in an effectiveness and immunogenicity study conducted in two hospitals in São Paulo, SP, Brazil, from 2015 to 2016.
Results
of the 201 mothers included in the study, 48 (23.9%) had at least one AEFI; 60 symptoms related to Tdap use were identified – pain (22.4%), swelling (2.5%), fever (1.5%), somnolence (1.0%), redness (0.5%), vomiting (0.5%), headache (0.5%), local reaction (0.5%), and fatigue (0.5%); no rare, very rare, or extremely rare adverse events were reported; all events were considered to be expected, as they are described in the vaccine package insert; outcome of all events was recovery without sequelae.
Conclusion
Tdap vaccine in the form adopted by the National Immunization Program is safe; no unexpected adverse events were identified among vaccinated pregnant women.
Palabras clave : Diphteria-Tetanus-acellular Pertusis Vaccines; Drug-Related Side Effects and Adverse Reactions; Safety; Surveillance.