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Browsing by UP Author "Abolnik, Celia"
Now showing items 1-20 of 58
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Mubamba, Chrisborn; Ramsay, G.; Abolnik, Celia; Dautu, G.; Gummow, Bruce (Elsevier, 2018-10)There are limited data on production and financial performance of the rural poultry sector in developing countries like Zambia that could be used by extension services as a feedback loop to enhance service delivery in the ...
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Burger, Christina E.; Abolnik, Celia; Fosgate, Geoffrey Theodore (American Association of Avian Pathologists, 2012)Egyptian geese (Alopochen aegypticus), a duck species endemic to sub-Saharan Africa and occasionally implicated in the transmission of avian influenza viruses (AIV) to farmed ostriches, were experimentally infected with ...
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Theobald, Shannon; Etter, Eric Marcel Charles; Gerber, David; Abolnik, Celia (Mary Ann Liebert, 2019-09)Prolonged and widespread in-feed use of antimicrobials as either growth promoters or to treat bacterial infections in commercial poultry production contributed to the emergence of resistant bacterial strains globally. A ...
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Bwala, Dauda Garba; Solomon, Ponman; Duncan, N.M. (Neil); Wandrag, D.B.R. (Daniel); Abolnik, Celia (Taylor and Francis, 2018)Mycoplasma gallisepticum (MG) is the primary cause of chronic respiratory disease in poultry. We investigated the protective efficacy of the live-attenuated ts-11 and 6/85 MG vaccines against a local MG strain and, in order ...
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Abolnik, Celia; Wandrag, D.B.R. (Daniel) (American Association of Avian Pathologists, 2014)A disease with severe neurologic symptoms caused 100% mortality in a small broiler operation in the Gauteng Province, South Africa in late March 2013. Routine diagnostic PCR testing failed to identify a possible cause of ...
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Caron, A.; Chiweshe, N.; Mundava, J.; Abolnik, Celia; Capobianco Dondona, A.; Scacchia, M.; Gaidet, N. (Springer, 2017-12)We sampled 417 swallows in a wetland ecosystem of Zimbabwe in February 2010 and October 2011. RT-PCR tests revealed circulation of avian paramyxovirus type I, avian influenza and West Nile disease viruses in these populations. ...
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Fasina, Folorunso Oludayo; Joannis, Tony M.; Abolnik, Celia; McCrindle, Cheryl Myra Ethelwyn; Bisschop, S.P.R. (Shahn) (Veterinary Solutions LLC, 2006)Avian influenza, a transboundary poultry disease of great economic importance, has been ravaging the poultry industry worldwide since the 1950s. The virus usually occurs as waves of epizootics in the poultry industry ...
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Adeyemi, Modupeore; Bwala, Dauda Garba; Abolnik, Celia (American Association of Avian Pathologists, 2018)Mycoplasma gallinaceum is not among the most pathogenic mycoplasmas affecting poultry, but its continuous reisolation from flocks in South Africa displaying typical signs of mycoplasmosis prompted us to revisit its role ...
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Abolnik, Celia; Strydom, Christine (American Society for Microbiology, 2019-07)A hemagglutinating virus isolated during routine surveillance in ostriches was sequenced, identified as avian orthoavulavirus 1 (AOaV-1), and classified as a class I genotype 1.2 virus, with recent common ancestors in ...
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Abolnik, Celia; Mubamba, Chrisborn; Dautu, George; Gummow, Bruce (American Society for Microbiology, 2017-08-24)The first complete genome sequence of an African-origin Newcastle disease virus belonging to genotype XIII is described here. The virulent strain chicken/ Zambia/Chiwoko/2015 was isolated from diseased chickens in 2015.
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Beylefeld, Amanda; Abolnik, Celia (American Society for Microbiology, 2017-02-23)The 1,007,172-bp complete genome of Mycoplasma pullorum strain B359_6, isolated from domestic chickens, has been sequenced, assembled, and annotated.
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Abolnik, Celia; Strydom, Christine; Rauff, Dionne Linda; Wandrag, D.B.R. (Daniel); Petty, Deryn (BioMed Central, 2019-12-18)BACKGROUND : The threat of poultry-origin H6 avian influenza viruses to human health emphasizes the importance of monitoring their evolution. South Africa’s H6N2 epidemic in chickens began in 2001 and two co-circulating ...
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Abolnik, Celia (Elsevier, 2014-06)Recent reports of the detection of the zoonotic low pathogenic avian influenza (LPAI) H7N9 viruses in healthy pigeons have again put the spotlight on the potential role of pigeons and doves in the transmission of avian ...
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Roberts, Laura C.; Abolnik, Celia; Waller, Lauren J.; Shaw, Kevin; Ludynia, Katrin; Roberts, David G.; Kock, Alison A.; Makhado, Azwianewi B.; Snyman, Albert; Abernethy, D.A. (Darrell) (Hindawi, 2023-02-23)High pathogenicity avian influenza (HPAI) clade 2.3.4.4b H5N8 virus was detected in coastal seabirds in late 2017 in South Africa, following a devastating epidemic in the commercial poultry and ostrich industries. By May ...
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Musako, Chimuka; Abolnik, Celia (AOSIS Open Journals, 2012-12-07)A cross-sectional study was conducted in five provinces and 11 districts of Zambia to determine the seroprevalence of Newcastle disease in Zambian backyard chicken flocks. Of the chickens sampled, 73.9% tested positive ...
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Fusaro, Alice; Zecchin, Bianca; Vrancken, Bram; Abolnik, Celia; Ademun, Rose; Alassane, Abdou; Arafa, Abdelsatar; Awuni, Joseph Adongo; Couacy-Hymann, Emmanuel; Coulibaly, M.’ Betiegue; Gaidet, Nicolas; Go-Mar, Emilie; Joannis, Tony; Jumbo, Simon Dickmu; Minoungou, Germaine; Meseko, Clement; Souley, Maman Moutari; Ndumu, Deo Birungi; Shittu, Ismaila; Twabela, Augustin; Wade, Abel; Wiersma, Lidewij; Akpeli, Yao P.; Zamperin, Gianpiero; Milani, Adelaide; Lemey, Philippe; Monne, Isabella (Nature Publishing Group, 2019-11-22)The role of Africa in the dynamics of the global spread of a zoonotic and economicallyimportant virus, such as the highly pathogenic avian influenza (HPAI) H5Nx of the Gs/GD lineage, remains unexplored. Here we characterise ...
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Abolnik, Celia; Smith, Tanja; Wandrag, D.B.R. (Daniel); Murphy, Mark-Anthony; Rautenbach, Marizel; Olibile, Olebile; O'Kennedy, Martha Magaretha (Elsevier, 2022-06)Avian influenza poses one of the largest known threats to global poultry production and human health, but effective poultry vaccines can reduce infections rates, production losses and prevent mortalities, and reduce viral ...
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Pieterse, R.; Strydom, Christine; Abolnik, Celia (BMJ Publishing Group, 2022-01)BACKGROUND: Rigorous testing is a prerequisite to prove freedom of notifiable influenza A virus infections in commercially farmed ostriches, as is the isolation and identification of circulating strains. Pooling 5 ostrich ...
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Bwala, Dauda Garba; Abolnik, Celia; Van Wyk, A.; Cornelius, E.; Bisschop, S.P.R. (Shahn) (2009-09)Since 2002, following its introduction, the lineage 5d Newcastle disease virus (so-called Goose paramyxovirus -GPMV) strain has caused numerous disease outbreaks among commercial and backyard poultry in South Africa, raising ...
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Smith, Tanja; O’Kennedy, Martha M.; Wandrag, D.B.R. (Daniel); Adeyemi, Modupeore; Abolnik, Celia (Wiley Open Access, 2020-02)The efficacy, safety, speed, scalability and cost-effectiveness of producing hemagglutinin-based virus-like particle (VLP) vaccines in plants are well-established for human influenza, but untested for the massive poultry ...
Now showing items 1-20 of 58