Serotypes and ampicillin resistance of Haemophilus influenzae isolates from children with respiratory infection in Hangzhou / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
;
(12): 217-220, 2009.
Artículo
en Chino
| WPRIM
| ID: wpr-347956
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the serotypes distribution and ampicillin resistance of Haemophilus influenzae isolates from children with respiratory infection in Hangzhou.</p><p><b>METHODS</b>Haemophilus influenzae strains were identified with V factor and X factor tests. Serotypes were determined with the slide agglutination method. Nitrocefin test was used to detect beta-lactamase. The sensitivities of ampicillin to Haemophilus influenzae were determined with the Kirby-Bauer diffusion method and the E-test method.</p><p><b>RESULTS</b>One hundred and fifty-two Haemophilus influenzae isolates, 108 from boys and 44 from girls, were identified between December 2006 and July 2007. Of the 152 isolates, 148 (97.4%) were untypable, only 4 (2.6%) were typable, including type a, type d, type e and type f (n=1 each type). Haemophilus influenzae type b and c strain was not found. Thirty-four isolates (22.4%) were beta-lactamase-positive. One hundred and thirteen isolates (74.3%) were susceptible to ampicillin, while 34 isolates (22.4%) were resistant to ampicillin.</p><p><b>CONCLUSIONS</b>Untypable strains were the most common in Haemophilus influenzae isolates from children with respiratory infection in Hangzhou. The isolates of Haemophilus influenzae kept susceptibity to ampicillin to a certain extent.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Infecciones del Sistema Respiratorio
/
Beta-Lactamasas
/
Resistencia a la Ampicilina
/
Pruebas de Sensibilidad Microbiana
/
Serotipificación
/
Haemophilus influenzae
/
Clasificación
/
Microbiología
Tipo de estudio:
Estudio pronóstico
Límite:
Adolescente
/
Niño
/
Child, preschool
/
Femenino
/
Humanos
/
Lactante
/
Masculino
/
Recién Nacido
Idioma:
Chino
Revista:
Chinese Journal of Contemporary Pediatrics
Año:
2009
Tipo del documento:
Artículo
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