نتایج جستجو برای: avian influenza a

تعداد نتایج: 13462306  

Journal: :iranian journal of veterinary medicine 0
mohammad malekan 1department of avian medicine, faculty of veterinary medicine, university of tehran, tehran, iran mehdi vasfimarandi department of avian medicine, faculty of veterinary medicine, university of tehran, tehran, iran abas barin department of microbiology, faculty of veterinary medicine, university of tehran, tehran, iran talat mokhtari azad department of virology, school of public health, tehran university of medical science, tehran, iran mohammad mehdi ranjbar department of microbiology, faculty of veterinary medicine, university of tehran, tehran, iran mohsen bashashati department of poultry diseases, faculty of veterinary medicine, university of tehran, tehran, iran

background: the h9n2 subtype of influenza a viruses is considered to be widespread in poultry industry. adamantane is a group of antiviral agents which is effective both in prevention and treatment of influenza a virus infections. these drugs inhibit m2 protein ion channel which has role on viral replication. objectives: the main objective of this study is to evaluate m gene of avian influenza ...

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Journal: :journal of agricultural science and technology 0
a. s. farsad department of crop biotechnology and breeding, faculty of agriculture, ferdowsi university of mashhad, mashhad, islamic republic of iran. s. malekzadeh-shafaroudi department of crop biotechnology and breeding, faculty of agriculture, ferdowsi university of mashhad, mashhad, islamic republic of iran. n. moshtaghi department of crop biotechnology and breeding, faculty of agriculture, ferdowsi university of mashhad, mashhad, islamic republic of iran. f. fotouhi influenza research lab, pasteur institute of iran, tehran, islamic republic of iran. s. zibaee razi vaccine and serum research institute, mashhad, islamic republic of iran.

the influenza a virus is of global concern for the poultry industry, especially the h5 subtype as it has the potential to become highly pathogenic for poultry and mankind. recently, plant expression systems have gained interest as an alternative for the production of vaccine antigens. the goal of the present study was to investigate the possibility of expressing the ha1 protein in nicotiana tab...

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Journal: :jundishapur journal of microbiology 0
forough talazadeh department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, ir iran; department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, ir iran. tel: +98-6113330073 fax: +98-6113360807 mansoor mayahi department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, ir iran masoudreza seifi department of pathobiology, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, ir iran mehdi pourmehdi department of food hygiene and quality control, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, ir iran

materials and methods a total of 300 day-old broiler chicks (ross 308) divided into three equal groups (1 to 3) .the chicks in group 1 were immunized with killed aiv h9n2. the chicks in group 2 were infected with ai virus subtype h9n2. the chicks in group 3 were kept as controls and did not receive any vaccined or lived virus. chicks sera were collected at day 42 usingrns1-elisa and commercial ...

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2004
K. F. Shortridge

Since the mid-1970s, Hong Kong has functioned as an influenza sentinel post for southern China, a region identified as a hypothetical epicentre for the emergence of pandemic influenza viruses. Nineteen ninety-seven marked the coming-of-age of animal-influenza studies with the recognition in Hong Kong of an incipient pandemic situation brought about by the infection of chicken and humans with an...

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ژورنال: مجله اپیدمیولوژی ایران 2019
Akbari, H, Amiri, B, Dadras, M, Darvishi, S, Erfani, H, Gouya, MM, Hemati, P, Mokhtari Azad , T, Moradi, GH, Rahmani, KH, Rezaei, F, Soltani, J, Soroush, M,

Background and Objectives: Iran, like most other countries in the world, is always threatened with global epidemics and pandemics of influenza. The purpose of this study was to review the influenza surveillance system in Iran.   Methods: Data of this study were obtained from the surveillance system of the Center for Communicable Disease Control, the review of records, documents, books and pub...

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Journal: مجله میکروب شناسی پزشکی ایران 2021
Farshid Danesh, Maryam Emami, Somayeh Ghavidel,

Background and Objective: Influenza is a global epidemic disease that always causes irreparable damage to individuals and countrieschr('39') health, and the amount of research in this area is increasing. The primary purpose this study is to discover the hidden patterns and emerging events of global influenza publications. Materials and Methods: This article is an applied type was done with an ...

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2017
Wenfei Zhu Jianfang Zhou Zi Li Lei Yang Xiyan Li Weijuan Huang Sumei Zou Wenbing Chen Hejiang Wei Jing Tang Liqi Liu Jie Dong Dayan Wang Yuelong Shu

With no or low virulence in poultry, avian influenza A(H7N9) virus has caused severe infections in humans. In the current fifth epidemic wave, a highly pathogenic avian influenza (HPAI) H7N9 virus emerged. The insertion of four amino acids (KRTA) at the haemagglutinin (HA) cleavage site enabled trypsin-independent infectivity of this virus. Although maintaining dual receptor-binding preference,...

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Journal: :Cytogenetic and genome research 2007
E M Sorrell G C Ramirez-Nieto I G Gomez-Osorio D R Perez

During the last decade the number of reported outbreaks caused by highly pathogenic avian influenza (HPAI) in domestic poultry has drastically increased. At the same time, low pathogenic avian influenza (LPAI) strains, such as H9N2 in many parts of the Middle East and Asia and H6N2 in live bird markets in California, have become endemic. Each AI outbreak brings the concomitant possibility of po...

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Journal: :IJICT 2012
Andino Maseleno Md. Mahmud Hasan

Based on Cumulative Number of Confirmed Human Cases of Avian Influenza (H5N1) Reported to World Health Organization (WHO) in the 2011 from 15 countries, Indonesia has the largest number death because Avian Influenza which 146 deaths. In this research, the researcher built an Avian Influenza (H5N1) Expert System for identifying avian influenza disease and displaying the result of identification ...

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Journal: :Journal of virology 1996
Y Guan K F Shortridge S Krauss P H Li Y Kawaoka R G Webster

Avian influenza A viruses from Asia are recognized as the source of genes that reassorted with human viral genes to generate the Asian/57 (H2N2) and Hong Kong/68 (H3N2) pandemic strains earlier in this century. Here we report the genetic analysis of avian influenza A H1N1 viruses recently isolated from pigs in southern China, a host suspected to generate new pandemic strains through gene reasso...

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