نتایج جستجو برای: h9

تعداد نتایج: 732  

2016
Duong Mai Thuy Thomas P. Peacock Vu Thi Ngoc Bich Thomas Fabrizio Dang Nguyen Hoang Nguyen Dang Tho Nguyen Thi Diep Minh Nguyen Le Nguyen Minh Hoa Hau Thi Thu Trang Marc Choisy Ken Inui Scott Newman Nguyen vu Trung Rogier van Doorn Thanh Long To Munir Iqbal Juliet E. Bryant

Despite their classification as low pathogenicity avian influenza viruses (LPAIV), A/H9N2 viruses cause significant losses in poultry in many countries throughout Asia, the Middle East and North Africa. To date, poultry surveillance in Vietnam has focused on detection of influenza H5 viruses, and there is limited understanding of influenza H9 epidemiology and transmission dynamics. We determine...

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2012
Peng Yang Chunna Ma Weixian Shi Shujuan Cui Guilan Lu Xiaomin Peng Daitao Zhang Yimeng Liu Huijie Liang Yi Zhang Li Zhang Holly Seale Quanyi Wang

The continued spread of highly pathogenic avian influenza (HPAI) viruses of H5 and H7 subtypes and low pathogenic avian influenza (LPAI) viruses of H5, H7 and H9 subtypes in birds and the subsequent infections in humans pose an ongoing pandemic threat. It has been proposed that poultry workers are at higher risk of exposure to HPAI or LPAI viruses and subsequently infection due to their repeate...

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Journal: :Journal of virology 1998
L Yin D Braaten J Luban

Human immunodeficiency virus type 1 (HIV-1) Gag and the cellular protein cyclophilin A form an essential complex in the virion core: virions produced by proviruses encoding Gag mutants with decreased cyclophilin A affinity exhibit attenuated infectivity, as do virions produced in the presence of the competitive inhibitor cyclosporine. The A224E Gag mutant has no effect on cyclophilin A affinity...

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Journal: :International journal of molecular medicine 2013
Zujuan Zhang Xinhua Chen Xiaohong Chang Xue Ye Yi Li Heng Cui

To date, only a few studies have suggested that human embryonic stem cells (hESCs) might effectively immunize against colon and lung cancer. The purpose of this study was to investigate the therapeutic potential of hESCs as a vaccine to induce widespread antitumor effects in different animal models and various types of cancer. C57BL/6 mice with ID...

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Journal: :Journal of virology 2004
Nikolai V Kaverin Irina A Rudneva Natalia A Ilyushina Aleksandr S Lipatov Scott Krauss Robert G Webster

We used a panel of monoclonal antibodies to H9 hemagglutinin to select 18 escape mutants of mouse-adapted influenza A/Swine/Hong Kong/9/98 (H9N2) virus. Cross-reactions of the mutants with the antibodies and the sequencing of hemagglutinin genes revealed two minimally overlapping epitopes. We mapped the amino acid changes to two areas of the recently reported three-dimensional structure of A/Sw...

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2012
Timothy M. Uyeki Doan C. Nguyen Thomas Rowe Xiuhua Lu Jean Hu-Primmer Lien P. Huynh Nguyen L. K. Hang Jacqueline M. Katz

BACKGROUND The frequency of avian influenza A virus infections among poultry workers is not well understood. METHODS A seroprevalence study of market poultry workers and persons without occupational poultry exposure was conducted during 2001 in Hanoi, Vietnam. Sera were tested for avian influenza H5 and H9 antibodies by microneutralization and Western blot assays. RESULTS Seroprevalence of ...

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Journal: :Neurologia medico-chirurgica 1961

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Journal: :The Journal of general virology 2012
Chuanling Qiao Qinfang Liu Bhupinder Bawa Huigang Shen Wenbao Qi Ying Chen Chris Ka Pun Mok Adolfo García-Sastre Jürgen A Richt Wenjun Ma

Both H9N2 avian influenza and 2009 pandemic H1N1 viruses (pH1N1) are able to infect humans and swine, which has raised concerns that novel reassortant H9 viruses with pH1N1 genes might be generated in these hosts by reassortment. Although previous studies have demonstrated that reassortant H9 viruses with pH1N1 genes show increased virulence in mice and transmissibility in ferrets, the virulenc...

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Journal: :iranian biomedical journal 0
اسماعیل صابرفر esmaeil saberfar محمد ام فرقانی فرد mohammad m. forghani-fard میرلطیف موسوی mirlatif mosavi

avian influenza virus (aiv) infection is a major cause of bird or human mortality and morbidity, therefore the rapid identification of the virus is of important clinical and epidemiological implication. methods: a multiplex reverse transcriptase pcr (rt-pcr) was optimized for the detection of influenza a virus and the h5 and h9 subtypes. the influenza type a specific primers were directed to th...

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2016
Liping Yan Qinfang Liu Xin Su Qiaoyang Teng Danqi Bao Guangsheng Che Hongjun Chen Hongrui Cui Tao Ruan Xuesong Li Zejun Li

To better understand the influence of different NA genes on pathogenicity of H9 viruses, three reassortant H9 viruses (rH9N1, H9N2 and rH9N3) were generated and characterized. All three viruses replicated efficiently in eggs and MDCK cells, whereas the rH9N1 and rH9N3 replicated more efficiently than H9N2 in A549 cells. The rH9N3 replicated more efficiently than rH9N1 and H9N2 viruses in mice, ...

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