skip to main content
Idioma:

Serotype and clonal distribution dynamics of invasive pneumococcal strains after PCV13 introduction (2011-2016): Surveillance data from 23 sites in Catalonia, Spain

Ludwig, Guillermo ; Garcia Garcia, Selene ; Lanaspa, Miguel ; Ciruela, Pilar ; Esteva, Cristina ; Fernández de Sevilla, Mariona ; Diaz Conradi, Alvaro ; Martí, Carmina ; Motje, Montse ; Galles, Carme ; Morta, Montse ; Izquierdo, Conchita ; Moraga Llop, Fernando A ; Campins Martí, Magda ; Salleras, Luis ; Jané, Mireia ; Domínguez García, Àngela ; Garcia Garcia, Juan Jose ; Muñoz Almagro, Carmen

Public Library of Science (PLoS) 2020

Texto completo disponível

Citações Citado por
  • Título:
    Serotype and clonal distribution dynamics of invasive pneumococcal strains after PCV13 introduction (2011-2016): Surveillance data from 23 sites in Catalonia, Spain
  • Autor: Ludwig, Guillermo ; Garcia Garcia, Selene ; Lanaspa, Miguel ; Ciruela, Pilar ; Esteva, Cristina ; Fernández de Sevilla, Mariona ; Diaz Conradi, Alvaro ; Martí, Carmina ; Motje, Montse ; Galles, Carme ; Morta, Montse ; Izquierdo, Conchita ; Moraga Llop, Fernando A ; Campins Martí, Magda ; Salleras, Luis ; Jané, Mireia ; Domínguez García, Àngela ; Garcia Garcia, Juan Jose ; Muñoz Almagro, Carmen
  • Assuntos: Catalonia ; Catalunya ; Epidemiologia ; Epidemiology ; Pneumococs ; Streptococcus pneumonia ; Vaccines ; Vacunes
  • Notas: Articles publicats en revistes (Medicina)
    PLoS One, 2020, vol. 15, num. 2, p. e0228612
    https://doi.org/10.1371/journal.pone.0228612
    32027715
    696119
    Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0228612
    http://hdl.handle.net/2445/170093
    1932-6203
  • Descrição: Background: The objective of this study is to describe incidence and shifts of serotype and clonal distribution of invasive Streptococcus pneumoniae strains in four different age groups (<5 years, 5-17 years, 18-64 years and >65 years) during a period of intermediate PCV13 vaccination coverage (2011-2016) in Catalonia, Spain. Methods: We included all pneumococcal strains systematically sent to the Catalan support laboratory for molecular surveillance of invasive pneumococcal disease (IPD) located at Hospital Sant Joan de Deu, Barcelona. Two study periods were considered: 2011-13, early PCV13 vaccination period (EVP) and 2014-2016, late vaccination period (LVP). Results A total of 2142 strains were included in the study. Five years after intermediate introduction of PCV13 in our population, a significant decrease of overall incidence of IPD in children <5 years was observed (incidence rate ratio 0.5, 95% confidence interval 0.4-0.8). However, in seniors older than 65 years, a significant increase of overall incidence of IPD was observed (IRR 1.4, 95% CI 1.1-1.7). The contribution of PCV13 vaccine serotypes to IPD declined significantly in all age groups: from 59% to 38.1% in <5 years; 82.7% to 59% in 5-17 years, 47.8% to 34.1% in 18-64 years and 48.2% to 37% in >65 years. Results: found when comparing both periods were consistent with IRRs observed year by year. In children <5 years, the three major serotypes detected were 1, 24F and 19A in EVP vs 24F, 14 and 10A in LVP. Among patients 5-17 years the first three serotypes were 1, 12F and 14 both in EVP and LVP. Among adults 18-64, the three major serotypes detected were 1, 12F and 8 vs 8, 12F and 3, respectively. Finally, in patients >65 years the most frequently isolated serotypes were 3, 19A and 7F vs 3, 14 and 12F, respectively. Regarding clonal complexes (CCs) expressing mainly PCV13 serotypes, significant decreases of the proportions of CC306, CC191 and CC320 were observed, while CC156 showed a significant increase. As for CCs expressing mostly non-PCV13 serotypes, significant increases in ST989, CC53 and CC404 were showed. Conclusions: Despite low vaccine coverage in our setting a significant decrease of incidence of IPD was observed in children younger than 5 years. The modest indirect protection against vaccine serotypes causing IPD in elderly indicate the need for the inclusion of more serotypes in future high-valent PCV and vaccinating old adults should be considered.
  • Editor: Public Library of Science (PLoS)
  • Data de criação/publicação: 2020
  • Idioma: Inglês
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  6 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.