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Virological and serological surveys for H9N2 subtype of influenza A virus in chickens and men in Shenzhen city / 中华实验和临床病毒学杂志
Chinese Journal of Experimental and Clinical Virology ; (6): 319-321, 2002.
Artigo em Chinês | WPRIM | ID: wpr-242621
ABSTRACT
<p><b>OBJECTIVE</b>To understand the distribution of influenza A H9N2 virus in chickens and men in Shenzhen area.</p><p><b>METHODS</b>Virus isolation was performed in embryonated hen s eggs with routine method. The antibody to H9N2 virus was detected with micro-hemagglutination inhibition (HI) test, then the results were checked by using the neutralization assay in MDCK cells.</p><p><b>RESULTS</b>Totally 27 strains of influenza A H9N2 virus were isolated from chickens in farm markets in Shenzhen, whereas no H9N2 virus was isolated from men. Approximately 26% of human sera with the HI titers > or =20 to H9N2 virus were detected. However only 7% of chicken sera with the HI titers > or =20 to H9N2 virus were detected. Meanwhile the HI titer and (MGT) of antibody to H9N2 virus in human sera increased with age. It was also found that there was a close relationship between HI antibody titer to H9N2 virus in human sera and occupation.</p><p><b>CONCLUSIONS</b>The distribution of influenza A H9N2 virus in chicken and men in Shenzhen was rather wide. The human H9N2 virus infection probably derived from chicken H9N2 virus.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vírus da Influenza A / Virologia / Sangue / Testes de Inibição da Hemaglutinação / Estudos Soroepidemiológicos / Galinhas / China / Epidemiologia / Classificação / Alergia e Imunologia Limite: Animais / Humanos País/Região como assunto: Ásia Idioma: Chinês Revista: Chinese Journal of Experimental and Clinical Virology Ano de publicação: 2002 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vírus da Influenza A / Virologia / Sangue / Testes de Inibição da Hemaglutinação / Estudos Soroepidemiológicos / Galinhas / China / Epidemiologia / Classificação / Alergia e Imunologia Limite: Animais / Humanos País/Região como assunto: Ásia Idioma: Chinês Revista: Chinese Journal of Experimental and Clinical Virology Ano de publicação: 2002 Tipo de documento: Artigo