Impact of Vaccination Coverage on the Incidence of Whooping Cough in Jacareí (São Paulo) in the Years 2012 And 2025: An Analysis Focused on Infants Under 1 Year Old

Authors

DOI:

https://doi.org/10.36489/saudecoletiva.2025v16i101p17334-17343

Keywords:

Whooping Cough, Vaccination, Immunization, Family Health, Primary Health Care

Abstract

Objective: To analyze the correlation between pentavalent vaccine coverage and the incidence of pertussis in children under 1 year of age in Jacareí-SP between 2012 and 2025, with emphasis on implications for Primary Health Care (PHC). Methods: Descriptive, retrospective study based on secondary data from SINAN and DATASUS. Confirmed pertussis cases and the vaccination status of children under one year were analyzed, along with annual vaccination coverage rates. Results: Between 2012 and 2025, 31 cases were confirmed, 64.5% in children under 1 year. Of these, 95% had incomplete or no vaccination schedules. Pentavalent vaccine coverage fell short of the 95% target in several years. Conclusion: An association was observed between low vaccination coverage and higher incidence of pertussis in infants. This scenario highlights challenges for PHC in terms of epidemiological surveillance, adherence to the vaccination schedule, and strengthening preventive actions in communities.

References

Ministério da Saúde (BR). Programa Nacional de Imunizações: manual de normas e procedimentos para vacinação [Internet]. Brasília: Ministério da Saúde; 2014 [cited 2025 Jul 11]. Available from: https://bvsms.saude.gov.br/bvs/publicacoes/manual_procedimentos_vacinacao.pdf

Centers for Disease Control and Prevention (US). Pertussis (Whooping Cough) 2020 case definition [Internet]. Atlanta: CDC; 2020 [cited 2025 Jul 9]. Available from: https://ndc.services.cdc.gov/case-definitions/pertussis-2020/

Ministério da Saúde (BR). Sistema de Informação de Agravos de Notificação – Coqueluche [Internet]. Brasília: Ministério da Saúde; [date unknown] [cited 2025 Jul 11]. Available from: http://portalsinan.saude.gov.br/coqueluche

Ministério da Saúde (BR). Secretariat of Information and Digital Health – SEIDIGI. Department of Monitoring, Evaluation and Dissemination of Strategic Health Information – DEMAS. Vaccination coverage monitoring platform by place of residence [Internet]. Brasília: Ministério da Saúde; 2025 May 1 [cited 2025 Jul 11]. Available from: https://infoms.saude.gov.br/extensions/SEIDIGI_DEMAS_VACINACAO_CALENDARIO_NACIONAL_COBERTURA_RESIDENCIA/SEIDIGI_DEMAS_VACINACAO_CALENDARIO_NACIONAL_COBERTURA_RESIDENCIA.html

Published

2025-10-27

How to Cite

Rocha, B. G., Costa, D. H. de S. L., Cazanova, P. H. G., & Roberto, A. C. (2025). Impact of Vaccination Coverage on the Incidence of Whooping Cough in Jacareí (São Paulo) in the Years 2012 And 2025: An Analysis Focused on Infants Under 1 Year Old. Sa´úde Coletiva (Barueri), 16(101), 17334–17343. https://doi.org/10.36489/saudecoletiva.2025v16i101p17334-17343

Issue

Section

Quantitative Article