Avian influenza H9N2 subtype in Ghana: virus characterization and evidence of co-infection.

Avian influenza H9N2 subtype in Ghana: virus characterization and evidence of co-infection. Avian Pathol. 2019 May 30;:1-65 Authors: Awuni JA, Bianco A, Dogbey OJ, Fusaro A, Yingar DT, Salviato A, Ababio PT, Milani A, Bonfante F, Monne I Abstract Between November 2017 and February 2018, Ghanaian poultry producers reported to animal health authorities a dramatic increase in mortality rate and a relevant drop in egg production in several layer hens farms. Laboratory investigations revealed that the farms had been infected by the H9N2 influenza subtype. Virological and molecular characterization of the viruses identified in Ghana is described here for the first time. Whole genome analysis showed that the viruses belong to the G1-lineage and cluster with viruses identified in North and West Africa. The low pathogenicity of the virus was confirmed by the intravenous pathogenicity index assay. Further investigations revealed the co-infection with infectious bronchitis virus of the GI-19 lineage, which very likely explained the severity of the disease observed during the outbreaks. The H9N2 outbreaks in Ghana highlight the importance of performing a differential diagnosis and an in-depth characterization of emerging viruses. In addition, the detection of a potentially zoonotic subtype such as the H9N2 in a region where highly pathogenic avian influenza H5Nx is currently circulating highlights the urgency of implementing enhanced monitoring strategies and suppor...
Source: Avian Pathology - Category: Pathology Authors: Tags: Avian Pathol Source Type: research

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Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
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Source: Evidence-based Complementary and Alternative Medicine - Category: Complementary Medicine Tags: Evid Based Complement Alternat Med Source Type: research
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Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak Infectious diseases Science World news France Trump administration Donald Trump Source Type: news
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Source: Microbes and Infection - Category: Infectious Diseases Source Type: research
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Source: Histochemistry and Cell Biology - Category: Biomedical Science Source Type: research
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Source: Current Cardiology Reports - Category: Cardiology Source Type: research
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Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak World news UK news US news Australia news Science Infectious diseases Source Type: news
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Source: L.A. Times - Health - Category: Consumer Health News Authors: Source Type: news
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Source: Reuters: Health - Category: Consumer Health News Source Type: news
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