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Browsing by Supervisor "Abolnik, Celia"
Now showing items 1-16 of 16
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(University of Pretoria, 2013-07-12)The specific objectives of this study were to determine the Newcastle disease virus (NDV) antibody titres from the chicken sera collected from various districts and provinces of Zambia and to determine the seroprevalence ...
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(University of Pretoria, 2020)The South African poultry industry has been beset by sporadic H6N2 avian influenza infection (sub-lineage I and II) in chickens since the early 2000s, with economic losses resulting from reduced egg production and co-infection ...
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(University of Pretoria, 2022)Avian mycoplasmosis is a serious and chronic bacterial disease caused by Mycoplasma species that can greatly impact the sustainability and profits of poultry production. The pathogens significant to poultry are Mycoplasma ...
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(University of Pretoria, 2019)Avian influenza (AI) control in farmed ostriches relies on rapid and accurate diagnostic testing to detect the presence and spread of disease in avian populations, as flocks are in unavoidable contact with wild bird ...
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(University of Pretoria, 2018)Mycoplasma gallisepticum and Mycoplasma synoviae are listed by the World Organisation for Animal Health (OIE) as notifiable avian diseases agents and are considered as economically important species affecting the South ...
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(University of Pretoria, 2013-12-12)West Nile Virus (WNV) forms part of the Japanese encephalitis serocomplex in the genus Flavivirus, family Flaviviridae. This enveloped positive single-stranded RNA (+ssRNA ) virus is the etiological agent of West Nile ...
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(University of Pretoria, 2021)Influenza A virus (IAV) is a single-stranded negative-sense RNA virus that is a member of the Orthomyxoviridae group. IAV has been detected in over 100 bird species from 26 different families, although Anseriformes and ...
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(University of Pretoria, 2013)Infectious bronchitis virus (IBV) is a member of family Coronaviridae and is classified into group 3 of the Coronaviruses. The virus is a single-stranded positive-sense RNA virus with a genome of 27kbp. IBV is a highly ...
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(University of Pretoria, 2015)"Does the current H6N2 vaccine still offer sufficient protection?" is a fundamental question asked by the poultry industry in South Africa today. In this study we advanced our understanding of the genetic drift of the H6N2 ...
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(University of Pretoria, 2009-04-16)Highly pathogenic notifiable avian influenza (HPNAI) is a disease caused by influenza A virus. It is frequently fatal in poultry. Since late 2003, disease outbreaks caused by the Asian strains of HPAI H5N1 virus have ravaged ...
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(University of Pretoria, 2023-10-31)Pigeons, whether feral or bred for meat or sport like pigeon racing, are susceptible to a variety of diseases, many of which are caused by viral infections. Newcastle disease (ND) caused by Orthoavulavirus javaense, an ...
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(University of Pretoria, 2020)The Gs/GD (goose/Guangdong) highly pathogenic (HP) H5 influenza virus detected in China in 1996 has since evolved into genetically distinct clades and subclades. In June 2017, clade 2.3.4.4b H5N8 highly pathogenic avian ...
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(University of Pretoria, 2011)Although Newcastle disease is reported to be endemic in Nigeria, little information exists on the molecular epidemiology and the lineage distribution of the Newcastle disease viruses (NDVs) in the country, especially in ...
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(University of Pretoria, 2023-10-31)Infectious bronchitis virus (IBV) (family Gammacoronavirus) is an ever-evolving avian pathogen that causes major economic losses within the poultry industry worldwide. Antigenic variations allow the virus to evade vaccine ...
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(University of Pretoria, 2022)Infectious Bronchitis Virus (or IBV) is the root cause of extremely infectious respiratory disease that occurs in chickens. It has a high mutation rate that causes the emergence of multiple variants that are difficult ...
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(University of Pretoria, 2019)Infectious Bronchitis Virus (IBV) causes a highly contagious respiratory disease that affects chickens and other poultry. This OIE-listed disease has global economic implications with losses per flock estimated at 10% to ...
Now showing items 1-16 of 16