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Serotypes and susceptibility of Streptococcus pneumoniae strains isolated from children in Mexico / Serotipos y susceptibilidad de cepas de Streptococcus pneumoniae aisladas de niños en México
Villaseñor-Sierra, Alberto; Lomas-Bautista, Maricarmen; Aguilar-Benavides, Sergio; Martínez-Aguilar, Gerardo.
  • Villaseñor-Sierra, Alberto; Instituto Mexicano del Seguro Social. Centro de Investigación Biomédica de Occidente. Guadalajara. MX
  • Lomas-Bautista, Maricarmen; Instituto Mexicano del Seguro Social. Centro de Investigación Biomédica de Occidente. Guadalajara. MX
  • Aguilar-Benavides, Sergio; Instituto Mexicano del Seguro Social. Hospital de Pediatría. UMAE. Guadalajara. MX
  • Martínez-Aguilar, Gerardo; Instituto Mexicano del Seguro Social. Centro de Investigación Biomédica. MX
Salud pública Méx ; 50(4): 330-333, jul.-agosto 2008. tab
Article in English | LILACS | ID: lil-487606
ABSTRACT
Objective. To identify serotypes and susceptibility of S. pneumoniae strains from 48 children with invasive infections and 50 carriers. Material and Methods. Typing was performed by the Quellung reaction and susceptibility by Kirby-Bauer and Etest according to CLSI standards. Results. Of 31 meningeal strains, serotypes 19F, 3, 6B, 14 and 23F were predominant. Resistance to penicillin and STX was 16 and 58 percent, respectively; of 17 invasive non-meningeal strains, serotypes 19F and 3 were predominant and resistance to penicillin and SXT was 0 and 82 percent, respectively; of carrier strains, serotypes 6A, 6B, 19F and 23F were predominant. Conclusions. A 10-valent conjugate vaccine could offer a better coverage for meningeal strains.
RESUMEN
Objetivo. Identificar serotipos y susceptibilidad en cepas aisladas de 48 niños con infecciones invasivas y de 50 portadores. Material y métodos. Serotipificación mediante reacción de Quellung y susceptibilidad mediante Kirby-Bauer y E-test. Resultados. De 31 cepas meníngeas, predominaron serotipos 19F, 3, 6B, 14 y 23F y la resistencia a penicilina (P) y trimetoprim-sulfametoxazol (SXT) fue de 16 y 58 por ciento. En 17 cepas invasivas no meníngeas, predominaron serotipos 19F y 3 y la resistencia a P y SXT fue de 0 y 82 por ciento, en cada caso. En portadores predominaron serotipos 6A, 6B, 19F y 23F. Conclusiones. La resistencia es similar a otros informes. La vacuna conjugada 10-valente podría ofrecer mejor cobertura para serotipos asociados a meningitis.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Streptococcus pneumoniae Type of study: Observational study / Prevalence study / Risk factors Limits: Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: Mexico Language: English Journal: Salud pública Méx Journal subject: Public Health Year: 2008 Type: Article Affiliation country: Mexico Institution/Affiliation country: Instituto Mexicano del Seguro Social/MX

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Full text: Available Index: LILACS (Americas) Main subject: Streptococcus pneumoniae Type of study: Observational study / Prevalence study / Risk factors Limits: Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: Mexico Language: English Journal: Salud pública Méx Journal subject: Public Health Year: 2008 Type: Article Affiliation country: Mexico Institution/Affiliation country: Instituto Mexicano del Seguro Social/MX