Avian influenza A (H7N9) virus: from low pathogenic to highly pathogenic
نویسندگان
چکیده
منابع مشابه
Highly Pathogenic Avian Influenza A(H5N1) Virus
Author affiliations: Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany (I.A. Asante, S. Bertram, G. Gabriel); Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana (I.A. Asante, W.K. Ampofo); Center for Structural and Cellular Biology in Medicine at the University of Lübeck, Lübeck, Germany (S. Bertram, G. Gabriel); Veterinary S...
متن کاملHighly pathogenic avian influenza.
Highly pathogenic (HP) avian influenza (AI) (HPAI) is an extremely contagious, multi-organ systemic disease of poultry leading to high mortality, and caused by some H5 and H7 subtypes of type A influenza virus, family Orthomyxoviridae. However, most AI virus strains are mildly pathogenic (MP) and produce either subclinical infections or respiratory and/or reproductive diseases in a variety of d...
متن کاملHighly Pathogenic Avian Influenza A(H7N9) Virus, Tennessee, USA, March 2017
In March 2017, highly pathogenic avian influenza A(H7N9) was detected at 2 poultry farms in Tennessee, USA. Surveillance data and genetic analyses indicated multiple introductions of low pathogenicity avian influenza virus before mutation to high pathogenicity and interfarm transmission. Poultry surveillance should continue because low pathogenicity viruses circulate and spill over into commerc...
متن کاملHuman Infection with Highly Pathogenic Avian Influenza A(H7N9) Virus, China
The recent increase in zoonotic avian influenza A(H7N9) disease in China is a cause of public health concern. Most of the A(H7N9) viruses previously reported have been of low pathogenicity. We report the fatal case of a patient in China who was infected with an A(H7N9) virus having a polybasic amino acid sequence at its hemagglutinin cleavage site (PEVPKRKRTAR/GL), a sequence suggestive of high...
متن کاملPreliminary Epidemiology of Human Infections with Highly Pathogenic Avian Influenza A(H7N9) Virus, China, 2017
We compared the characteristics of cases of highly pathogenic avian influenza (HPAI) and low pathogenic avian influenza (LPAI) A(H7N9) virus infections in China. HPAI A(H7N9) case-patients were more likely to have had exposure to sick and dead poultry in rural areas and were hospitalized earlier than were LPAI A(H7N9) case-patients.
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ژورنال
عنوان ژورنال: Frontiers of Medicine
سال: 2021
ISSN: 2095-0217,2095-0225
DOI: 10.1007/s11684-020-0814-5