Wild bird surveillance around outbreaks of highly pathogenic avian influenza A(H5N8) virus in the Netherlands, 2014, within the context of global flyways.

Wild bird surveillance around outbreaks of highly pathogenic avian influenza A(H5N8) virus in the Netherlands, 2014, within the context of global flyways. Euro Surveill. 2015;20(12) Authors: Verhagen JH, van der Jeugd HP, Nolet BA, Slaterus R, Kharitonov SP, de Vries PP, Vuong O, Majoor F, Kuiken T, Fouchier RA PMID: 25846491 [PubMed - in process]
Source: Euro Surveill - Category: Infectious Diseases Authors: Tags: Euro Surveill Source Type: research

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Recently, several studies in this journal have highlighted the threat of avian influenza virus (AIV) to humans, poultry, and other animals.1 –6 In equines, there was only one reported influenza outbreak caused by AIV, which occurred in 1989–1990 in China. However, AIV still poses a potential threat to equines.
Source: Journal of Infection - Category: Infectious Diseases Authors: Tags: Letter to the Editor Source Type: research
Recently, several studies in this journal have highlighted the threat of avian influenza virus (AIV) to humans, poultry, and other animals.1 –6 In equines, there was only one reported influenza outbreak caused by AIV, which occurred in 1989-1990 in China. However, AIV still poses a potential threat to equines.
Source: Journal of Infection - Category: Infectious Diseases Authors: Tags: Letter to the Editor Source Type: research
Abstract In China, influenza A(H7N9) virus appeared in 2013, then mutated into a highly pathogenic virus, causing outbreaks among poultry and cases in humans. Since September 2017, extensive use of the corresponding vaccine, H7-Re1, successfully reduced virus prevalence. However, in 2019, a novel antigenic variant emerged, posing considerable economic and public health threats.A. PMID: 31855533 [PubMed - as supplied by publisher]
Source: Emerging Infectious Diseases - Category: Infectious Diseases Authors: Tags: Emerg Infect Dis Source Type: research
Wang Peirong Jiao There were five outbreaks of H7N9 influenza virus in humans in China since it emerged in 2013, infecting >1000 people. The H7N9 low pathogenic influenza virus was inserted into four amino acids in the HA protein cleavage site to mutate into the H7N9 highly pathogenic virus. This emerging virus caused 15 outbreaks in chickens from the end of 2016 to date. Two H7N9 avian influenza virus (AIV) strains, A/chicken/Guangdong/A46/2013 (LPAIV) and A/chicken/Guangdong/Q29/2017 (HPAIV), were selected to compare the pathogenicity and transmissibility between H7N9 LPAIVs and HPAIVs in chickens. We inocul...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
Publication date: Available online 4 November 2019Source: Preventive Veterinary MedicineAuthor(s): Carla Correia-Gomes, Nick SparksAbstractBackyard poultry producers have been associated with outbreaks of exotic (e.g. avian influenza) and endemic (e.g. Salmonella) disease all over the world. Currently in the UK the registration of small flocks (less than 50 birds) with local authorities is voluntary therefore there is not an accurate record of how many keepers and birds there are or where they are located. This lack of information (e.g. how many birds they keep, what type of birds, biosecurity measures they implement, etc....
Source: Preventive Veterinary Medicine - Category: Veterinary Research Source Type: research
AbstractIn the 2014 –2015 Eurasian lineage clade 2.3.4.4A H5 highly pathogenic avian influenza (HPAI) outbreak in the U.S., backyard flocks with minor gallinaceous poultry and large commercial poultry (chickens and turkeys) operations were affected. The pathogenesis of the first H5N8 and reassortant H5N2 clade 2.3.4. 4A HPAI U.S. isolates was investigated in six gallinaceous species: chickens, Japanese quail, Bobwhite quail, Pearl guinea fowl, Chukar partridges, and Ring-necked pheasants. Both viruses caused 80–100% mortality in all species, except for H5N2 virus that caused 60% mortality in chickens. The surv ...
Source: Veterinary Research - Category: Veterinary Research Source Type: research
This article reviews the risk factors of nosocomial influenza outbreaks and discusses clinical, diagnostic, and treatment aspects of seasonal and avian influenza to facilitate hospital preparations for future influenza outbreaks. Literature search was conducted through PubMed of relevant peer-reviewed full papers in English journals with inclusion of relevant publications by the WHO and US CDC. Expert opinion: Accurate and rapid identification of an influenza outbreak is important to facilitate patient care and prevent nosocomial transmission. Timely treatment with a neuraminidase inhibitor (NAI) for adults hospitalized wi...
Source: Expert Review of Respiratory Medicine - Category: Respiratory Medicine Tags: Expert Rev Respir Med Source Type: research
IJERPH, Vol. 16, Pages 4139: Avian Influenza—Factors Affecting Consumers’ Purchase Intentions toward Poultry Products International Journal of Environmental Research and Public Health doi: 10.3390/ijerph16214139 Authors: Xiaowei Wen Sangluo Sun Lin Li Qinying He Fu-Sheng Tsai Recently, continuing outbreaks of avian influenza in China have not only caused great loss to the agricultural sector but also brought fear and distrust to consumers, seriously undermining consumer confidence in chicken products. We investigated consumers’ purchase intentions during avian influenza outbreaks by ex...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
In this study, we identified four amantadine-resistant M2 mutants among avian and human influenza A H5N1 strains circulating between 2002 to 2019: the single S31N and V27A mutants, and the S31N/L26I and S31N/V27A double mutants. Herein, utilizing two-electrode voltage clamp (TEVC) assays, we screened a panel of structurally diverse M2 inhibitors against these single and double mutant channels. Three compounds 6, 7, and 15 were found to significantly block all three M2 mutants: M2-S31N, M2-S31N/L26I, and M2-S31N/V27A. Using recombinant viruses generated from reverse genetics, we further showed that these compounds also inhi...
Source: European Journal of Pharmaceutical Sciences - Category: Drugs & Pharmacology Authors: Tags: Eur J Pharm Sci Source Type: research
Abstract The occurrence of severe outbreaks of highly pathogenic avian influenza in Korea led to establishment of a national antigen bank for emergency preparedness. Here, we developed five vaccines for this bank (clade 2.3.2.1C, clade 2.3.4.4A, B, C, and D) by reverse genetics, inactivated them with formalin, and evaluated the protective efficacy and potency of serial dilutions against lethal homologous challenge in specific-pathogen-free chickens. After vaccination with one dose, each vaccine resulted in 100% survival, with no clinical symptoms, or lack of detectable virus shedding, and high levels of pre-challe...
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
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