Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"PCV2"”.
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Effect of viral and host genetics on pcv2 replication in lymphoblasts and clearance by monocytes
Porcine circovirus type 2 (PCV2), a very small, circular, single-stranded DNA virus, is the major etiologic agent of porcine circovirus-associated diseases (PCVADs) and is widely prevalent in swine herds. It causes significant economic losses to the global pig industry. Three major PCV2 genotypes …
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Molecular mechanisms of porcine circovirus 2 replication and pathogenesis
… line PK-15. Whereas, porcine circovirus type 2 (PCV2) causes postweaning multisystemic wasting syndrome (PMWS) in pigs, which is devastating to the swine industry. My objectives were to determine the effect of maternally derived antibodies on PCV2 infection, assess the role of 2 amino acid …
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Molecular Pathogenesis and Development of a Genetically Engineered Vaccine for Type-2 Porcine Circovirus
Porcine circovirus type 2 (PCV2) is the primary causative agent of postweaning multisystemic wasting syndrome (PMWS), whereas the ubiquitous porcine circovirus type 1 (PCV1) is nonpathogenic for pigs. Since its initial detection in a Canadian commercial swine herd in 1991, PMWS has been detected in …
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Molecular Breeding of Porcine Circovirus Type 2 by Synthetic DNA Shuffling
Porcine circovirus type 2 (PCV2) is a small, non-enveloped, single-stranded DNA virus that causes disease in pigs and is an economically important pathogen affecting pig populations worldwide. PCV2 contains two major open reading frames (ORF): ORF1 encodes two replicase proteins and ORF2 encodes …
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Porcine circovirus associated disease: Modulation of the host immune response to PCV2 and PRRSV by regulatory T cells
… swine industry. Porcine circovirus type 2 (PCV2) is the primary and essential causative agent of PCVAD, but development of clinical disease typically requires co-infection with other swine pathogens such as porcine reproductive and respiratory syndrome virus (PRRSV). The specific mechanisms …
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Circovirus Porcino (PCV2) en la granja porcina San José Aganorsa durante el periodo del 2011 al 2013
… especifico para circovirus porcino tipo 2 (PCV2), realizada en el laboratorio nacional de diagnóstico veterinario MAGFOR en julio del 2011. En la primera evaluación se determinaron los indicadores epidemiológicos prevalencia, mortalidad y virulencia; utilizando datos de la empresa (diciembre …
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Effect of vaccination against porcine circovirus type 2 (PCV2) on ejaculate characteristics and the shedding of virus in boar semen
… has demonstrated that porcine circovirus type 2 (PCV2) can be shed into boar semen, raising the possibility that artificial insemination may be an important route by which disease associated with PCV2 is transmitted. The objective of this experiment was to determine the effect of vaccination …
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Immune modulation mechanisms of porcine circovirus type 2
… agent of PCVAD; however the presence of PCV2 alone is rarely enough to cause clinical disease. In order for the full development of PCVAD the presence of a co-infecting pathogen is required. The mechanisms by which co-infection leads to disease remain ongoing areas of research, but it is …
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Effect of circovirus vaccination on immune responses, viral load, and growth performance of pigs under field conditions
Vaccination against porcine circovirus type 2 (PCV2) has become a standard practice to improve pig mortality and growth rate in PCV2-affected herds. Unfortunately, there has been little field-based research evaluating factors which affect circovirus vaccination. The focus of this research was on …
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Persistent viruses in Capsicum annuum plants: Understanding the mystery guests
… partitiviruses pepper cryptic virus 1 (PCV1) or PCV2. Plants infected with these viruses harboured similar viral RNA levels in all tissues, consistent with previous studies. I investigated virus-virus interactions between persistent viruses and two pathogenic viruses. Tobacco mosaic virus (TMV) …
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Novel approaches towards vaccine developments against porcine circovirus type 2 and porcine reproductive and respiratory syndrome virus
Porcine circovirus type 2 (PCV2) is the causative agent of porcine circovirus-associated disease (PCVAD). Porcine reproductive and respiratory syndrome (PRRS) is caused by PRRS virus (PRRSV). Both PCV2 and PRRSV have caused devastating diseases in the swine industry worldwide, resulting in immense …
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Perfil sorológico e virêmico de suínos da raça Piau e linhagem comercial naturalmente infectados com o Porcine circovirus 2 em diferentes fases de produção
As doenças associadas ao PCV2 (PCVAD) necessitam de vários fatores para ocorrer, no entanto, a infecção pelo vírus é fundamental para o desenvolvimento de qualquer uma das síndromes. O presente estudo teve como objetivo verificar diferenças nos perfis sorológicos e virêmicos para o PCV2 entre …
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Avaliação da co-infecção do circovirus suíno 2 com Mycoplasma hyopneumoniae em amostras de pulmões coletadas em abatedouro
… suína, causada pelo circovirus suíno tipo 2 (PCV2), e a pneumonia enzoótica suína, causada pelo Mycoplasma hyopneumoniae, são doenças infecto-contagiosas de grande importância na suinocultura mundial, ambas causam pneumonias com diferentes formas de apresentação. Têm distribuição cosmopolita e …
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Genetic Stability of a Genetically-Engineered Chimeric Porcine Circovirus (PCV) Vaccine, PCV1-2
Porcine circovirus type 2 (PCV2) is the primary causative agent of porcine circovirus associated disease (PCVAD), an economically important swine disease that causes wasting in pigs 5-18 weeks of age. There exist two different types of porcine circoviruses: porcine circovirus type 1 (PCV1) was …