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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.
Artigo em Chinês | 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>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Infecções Respiratórias / Beta-Lactamases / Resistência a Ampicilina / Testes de Sensibilidade Microbiana / Sorotipagem / Haemophilus influenzae / Classificação / Microbiologia Tipo de estudo: Estudo prognóstico Limite: Adolescente / Criança / Criança, pré-escolar / Feminino / Humanos / Lactente / Masculino / Recém-Nascido Idioma: Chinês Revista: Chinese Journal of Contemporary Pediatrics Ano de publicação: 2009 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Infecções Respiratórias / Beta-Lactamases / Resistência a Ampicilina / Testes de Sensibilidade Microbiana / Sorotipagem / Haemophilus influenzae / Classificação / Microbiologia Tipo de estudo: Estudo prognóstico Limite: Adolescente / Criança / Criança, pré-escolar / Feminino / Humanos / Lactente / Masculino / Recém-Nascido Idioma: Chinês Revista: Chinese Journal of Contemporary Pediatrics Ano de publicação: 2009 Tipo de documento: Artigo