Evaluation of the direct and indirect impact on pneumonia hospitalization after almost a decade of the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine in Brazil
Clin. biomed. res
; 42(4): 302-307, 2022. ilus
Article
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| LILACS
| ID: biblio-1451363
Biblioteca responsable:
BR18.1
ABSTRACT
Introduction:
Pneumococcal pneumonia is a leading cause of severe disease, leading to approximately 2.2 million hospital admissions in 2019 in Brazil. Since 2010, the 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine was introduced in Brazil, as part of the National Immunization Program (NIP) with universal access, approximated coverage of 91.4% in 2019. Although studies from many countries are available, there is still a need to understand the effect of the vaccine introduction on the incidence of pneumonia hospitalizations in Brazil.Methods:
Data on hospitalization associated with the diagnosis of pneumonia in the population assisted by the Brazilian Public Health System were accessed to fit a time series analysis, which tested the main hypothesis of the influence of vaccination on the trends for the incidence of pneumonia hospitalizations.Results:
The post-vaccination period showed a negative trend, reducing 1.75, 0.16, and 0.11 cases per 100,000 inhabitants per month for the groups < 1, 14, and 59 years old, respectively. In individuals older than 20 years, the post-vaccination period has a positive trend, but not as great as compared trends before the vaccination period. These results indicate a protective herd effect in the older population, nine years after introducing the pneumococcal vaccine in the NIP.Conclusion:
Vaccination with pneumococcal conjugated vaccine reduces hospitalizations associated with pneumonia diagnosis in vaccinated and non-vaccinated populations in a sustained and progressive manner.Asunto(s)
Palabras clave
Texto completo:
1
Índice:
LILACS
Asunto principal:
Infecciones Neumocócicas
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Vacunas Neumococicas
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Child, preschool
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Humans
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Infant
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Clin. biomed. res
Asunto de la revista:
MEDICINA
Año:
2022
Tipo del documento:
Article