Streptococcus pneumoniae isolated during 2002-2006: serotypes and antibiotics resistance. Correlation with existing vaccines

Authors

  • José María Guevara-Duncan Instituto de Medicina Tropical Daniel A. Carrión, Facultad de Medicina, UNMSM
  • Asunción Fenoll Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, España
  • Esther Valencia Instituto de Medicina Tropical Daniel A. Carrión, Facultad de Medicina, UNMSM
  • Rito Zerpa Instituto de Medicina Tropical Daniel A. Carrión, Facultad de Medicina, UNMSM; Instituto de Salud del Niño
  • José María M. Guevara-Granados Instituto de Medicina Tropical Daniel A. Carrión, Facultad de Medicina, UNMSM; Hospital Nacional Daniel A. Carrión, Callao

DOI:

https://doi.org/10.15381/anales.v69i1.1177

Keywords:

Streptococcus pneumoniae, serologic tests, drug resistance, bacterial

Abstract

Objectives: To identify isolated S. pneumoniae serotypes correlating them with those covered by existing vaccines and determining antimicrobial resistance. Design: Descriptive, observational and longitudinal study. Setting: Daniel A Carrion Tropical Medicine Institute, School of Medicine, UNMSM. Biologic material: Streptococcus pneumoniae stocks. Interventions: Forty Streptococcus pneumoniae stocks isolated between 2002 and 2006 were serotyped at Carlos III Health Institute in Madrid, Spain; 15 were invasive, 11 isolated from localized infections, 6 from carriers and 8 were multiresistant. Main outcome measures: Protection of local existing vaccines to Streptococcus pneumoniae infections. Results: There were 14 different serotypes and most identified groups were 23, 19 and 6, 28,6% contained in the 7–valent vaccine, 42,9% in the 9-valent, 50% in the 11-valent and 71,4% in the 23-valent; 57,5% were resistant to penicillin and 30% to erythromycin. The invasive Streptococcus group proved to be more sensitive to antibiotics than the other groups; 19F and 23F serotypes were multiresistant. Conclusions: In our environment none of the studied vaccines protected all the infections caused by Streptococcus pneumoniae. Resistance to penicillin was high.

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Published

2008-03-17

Issue

Vol. 69 No. 1 (2008)

Section

Trabajos originales

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Copyright (c) 2008 José María Guevara-Duncan, Asunción Fenoll, Esther Valencia, Rito Zerpa, José María M. Guevara-Granados

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How to Cite

1.
Guevara-Duncan JM, Fenoll A, Valencia E, Zerpa R, Guevara-Granados JMM. Streptococcus pneumoniae isolated during 2002-2006: serotypes and antibiotics resistance. Correlation with existing vaccines. An Fac med [Internet]. 2008 Mar. 17 [cited 2024 Jun. 30];69(1):29-32. Available from: https://revistasinvestigacion.unmsm.edu.pe/index.php/anales/article/view/1177