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Journal ArticleDOI

Diagnosis of Mycoplasma hyopneumoniae.

Eileen L. Thacker
- 01 Dec 2004 - 
- Vol. 5, Iss: 2, pp 317-320
TLDR
The use of serology, the polymerase chain reaction and various assays to detect the presence of M. hyopneumoniae in tissue is common in diagnostic laboratories as mentioned in this paper.
Abstract
Mycoplasma hyopneumoniae, the cause of enzootic pneumonia, remains an important pathogen in the swine industry. This small, complex organism colonizes the ciliated cells of the respiratory tract, resulting in little exposure to the immune system. Confirming the presence of M. hyopneumoniae, as well as identifying its role in respiratory disease and pneumonia, remains challenging to the veterinary profession. While culture of the organism remains the gold standard for identification, the use of serology, the polymerase chain reaction and various assays to detect the presence of M. hyopneumoniae in tissue is common in diagnostic laboratories. Because of the role M. hyopneumoniae plays in increasing the severity of pneumonia associated with concurrent bacterial and viral infections, understanding the pathogenesis and diagnostic assays available is critical for developing effective intervention strategies to control respiratory disease on a herd basis.

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Citations
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Journal ArticleDOI

Control of Mycoplasma hyopneumoniae infections in pigs.

TL;DR: The main effects of vaccination include less clinical symptoms, lung lesions and medication use, and improved performance, however, bacterins provide only partial protection and do not prevent colonization of the organism.
Journal ArticleDOI

An Investigation of the Pathology and Pathogens Associated with Porcine Respiratory Disease Complex in Denmark

TL;DR: Lung samples from 148 finishing pigs with cranioventral lobular bronchopneumonia consistent with porcine respiratory disease complex (PRDC) in Denmark revealed a broad range of microscopical lesions and the diversity and number of pathogens were higher in these animals compared with controls.
Journal ArticleDOI

Mycoplasma hyopneumoniae: from disease to vaccine development.

TL;DR: In this review, the characteristics of M. hyopneumoniae related to pathogenesis and control measures will be discussed and special emphasis will be placed on vaccination strategies that have been proposed with the use of reverse vaccinology approaches.
Journal ArticleDOI

The effect of vaccination on the transmission of Mycoplasma hyopneumoniae in pigs under field conditions.

TL;DR: It is indicated that vaccination does not significantly reduce the transmission of this respiratory pathogen in nursery pigs under field conditions.
Journal ArticleDOI

Proteomic survey of the pathogenic Mycoplasma hyopneumoniae strain 7448 and identification of novel post-translationally modified and antigenic proteins.

TL;DR: A proteomic analysis, based on two-dimensional gel electrophoresis of soluble protein extracts, immunoblot and mass spectrometry, which was carried out aiming the identification of gene products and antigenic proteins from the M. hyopneumoniae pathogenic strain 7448 produced a proteome map that is expected to serve as a reference for comparative analyses for methabolic studies based on cells cultured under modified conditions.
References
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Journal ArticleDOI

Detection and localization of Mycoplasma hyopneumoniae DNA in lungs from naturally infected pigs by in situ hybridization using a digoxigenin-labeled probe.

TL;DR: The in situ hybridization technique developed in this study was useful for detection of M. hyopneumoniae nucleic acids in tissues taken from naturally infected piglets and may be a valuable technique for studying the pathogenesis of the disease.
Journal Article

Histochemical and morphologic changes of porcine airway epithelial cells in response to infection with Mycoplasma hyopneumoniae.

TL;DR: Bronchi and bronchioles of infected pigs contained proportionately fewer goblet cells with mucin at all stages of infection than age-matched control pigs, and increased sulfated mucin in bronchial goblets may reflect altered glycoprotein production or secretion in response to infection with M hyopneumoniae.
Journal ArticleDOI

Evaluation of a blocking Elisa for screening of antibodies against porcine reproductive and respiratory syndrome (PRRS) virus

TL;DR: A blocking Elisa was developed for the detection of antibodies against PRRS virus with a view to satisfying the need for examination of blood samples on a large scale and was superior to both the immunoperoxidase monolayer assay and the indirect Elisa in detecting antibodies at a late stage of infection.
Journal ArticleDOI

Risk indicators for the seroprevalence of Mycoplasma hyopneumoniae, porcine influenza viruses and Aujeszky's disease virus in slaughter pigs from fattening pig herds.

TL;DR: Epidemiological aspects of Mycoplasma hyopneumoniae, influenza H1N1 and H3N2 viruses, and Aujeszky's disease virus were investigated in slaughter pigs from 50 fattening pig herds, and a positive association was found between influenza H2N2 virus and ADV.
Journal Article

Assessment of antibody response of swine infected with Mycoplasma hyopneumoniae by immunoblotting.

TL;DR: An immunoblot procedure was used to evaluate porcine antibody response to inoculation with Mycoplasma hyopneumoniae and found that the 64,000-D M hyorhinis antigen was the only antigen that did not cross-react with M flocculare or M hy orhinis.
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