نتایج جستجو برای: h7n9 subtype

تعداد نتایج: 56872  

2017
Wen Dong Kun Yang Quanli Xu Lin Liu Juan Chen

BACKGROUND A large number (n = 460) of A(H7N9) human infections have been reported in China from March 2013 through December 2014, and H7N9 outbreaks in humans became an emerging issue for China health, which have caused numerous disease outbreaks in domestic poultry and wild bird populations, and threatened human health severely. The aims of this study were to investigate the directional trend...

Journal: :Antimicrobial agents and chemotherapy 2015
Elena A Govorkova Tatiana Baranovich Bindumadhav M Marathe Lei Yang Margaret A Taylor Robert G Webster Garry L Taylor Helen Connaris

Compounds that target the cellular factors essential for influenza virus replication represent an innovative approach to antiviral therapy. Sp2CBMTD is a genetically engineered multivalent protein that masks sialic acid-containing cellular receptors on the respiratory epithelium, which are recognized by influenza viruses. Here, we evaluated the antiviral potential of Sp2CBMTD against lethal inf...

2014
Jian Fan David Cui Siuying Lau Guoliang Xie Xichao Guo Shufa Zheng Xiaofeng Huang Shigui Yang Xianzhi Yang Zhaoxia Huo Fei Yu Jianzhou Lou Li Tian Xuefen Li Yuejiao Dong Qiaoyun Zhu Yu Chen

BACKGROUND A novel avian influenza A (H7N9) virus emerged in eastern China in February 2013. 413 confirmed human cases, including 157 deaths, have been recorded as of July 31, 2014. METHODS Clinical specimens, including throat swabs, sputum or tracheal aspirates, etc., were obtained from patients exhibiting influenza-like illness (ILIs), especially from those having pneumonia and a history of...

2018
Wei Cheng Xiaoxiao Wang Ye Shen Zhao Yu Shelan Liu Jian Cai Enfu Chen

BACKGROUND The sudden increase in the number of human cases infected with avian influenza A(H7N9) virus after September 2016 raised global concern. OBJECTIVES To assess the changes in epidemiological characteristics of H7N9 cases since the massive closure of live poultry markets (LPMs) in the main urban areas in Zhejiang province. METHODS We used descriptive statistics to compare epidemiolo...

2015
Alexander J. Millman Fiona Havers A. Danielle Iuliano C. Todd Davis Borann Sar Ly Sovann Savuth Chin Andrew L. Corwin Phengta Vongphrachanh Bounlom Douangngeun Kim A. Lindblade Malinee Chittaganpitch Viriya Kaewthong James C. Kile Hien T. Nguyen Dong V. Pham Ruben O. Donis Marc-Alain Widdowson

During February 2013-March 2015, a total of 602 human cases of low pathogenic avian influenza A(H7N9) were reported; no autochthonous cases were reported outside mainland China. In contrast, since highly pathogenic avian influenza A(H5N1) reemerged during 2003 in China, 784 human cases in 16 countries and poultry outbreaks in 53 countries have been reported. Whether the absence of reported A(H7...

2015
Jian Zheng Wai-Lan Wu Yinping Liu Zheng Xiang Ming Liu Kwok-Hung Chan Siu-Ying Lau Kwok-Tai Lam Kelvin Kai-Wang To Jasper Fuk-Woo Chan Lanjuan Li Honglin Chen Yu-Lung Lau Kwok-Yung Yuen Wenwei Tu Adrianus CM Boon

A novel avian influenza virus H7N9 infection occurred among human populations since 2013. Although the lack of sustained human-to-human transmission limited the epidemics caused by H7N9, the late presentation of most patients and the emergence of neuraminidase-resistant strains made the development of novel antiviral strategy against H7N9 in urgent demands. In this study, we evaluated the poten...

2017

An emerging infectious disease is usually problematic in medicine. Cross-species zoonosis is a current focus. The newly emerging H7N9 inluenza infection is an atypical inluenza that was detected early in 2013.1 The disease was irst reported in China and since then cases have been reported from many different provinces.1 According to the World Health Organization oficial report, by the end of Ma...

2015
Hassan Zaraket Tatiana Baranovich Bryan S Kaplan Robert Carter Min-Suk Song James C Paulson Jerold E Rehg Justin Bahl Jeri C Crumpton Jon Seiler Michael Edmonson Gang Wu Erik Karlsson Thomas Fabrizio Huachen Zhu Yi Guan Matloob Husain Stacey Schultz-Cherry Scott Krauss Ryan McBride Robert G Webster Elena A Govorkova Jinghui Zhang Charles J Russell Richard J Webby

Human infection with avian influenza A(H7N9) virus is associated mainly with the exposure to infected poultry. The factors that allow interspecies transmission but limit human-to-human transmission are unknown. Here we show that A/Anhui/1/2013(H7N9) influenza virus infection of chickens (natural hosts) is asymptomatic and that it generates a high genetic diversity. In contrast, diversity is tig...

Journal: :Science immunology 2017
Sarah F Andrews M Gordon Joyce Michael J Chambers Rebecca A Gillespie Masaru Kanekiyo Kwanyee Leung Eun Sung Yang Yaroslav Tsybovsky Adam K Wheatley Michelle C Crank Jeffrey C Boyington Madhu S Prabhakaran Sandeep R Narpala Xuejun Chen Robert T Bailer Grace Chen Emily Coates Peter D Kwong Richard A Koup John R Mascola Barney S Graham Julie E Ledgerwood Adrian B McDermott

Antigenic drift and shift of influenza strains underscore the need for broadly protective influenza vaccines. One strategy is to design immunogens that elicit B cell responses against conserved epitopes on the hemagglutinin (HA) stem. To better understand the elicitation of HA stem-targeted B cells to group 1 and group 2 influenza subtypes, we compared the memory B cell response to group 2 H7N9...

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