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Journal ArticleDOI

Diagnosis of Mycoplasma hyopneumoniae.

Eileen L. Thacker
- 01 Dec 2004 - 
- Vol. 5, Iss: 2, pp 317-320
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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 Article

Comparison of antibody production, lymphocyte stimulation, and protection induced by four commercial Mycoplasma hyopneumoniae bacterins

TL;DR: In this paper, five groups (n=10) of 2-week-old crossbred pigs with no antibodies to M. hyopneumoniae were vaccinated with one of four commercial M. Hyopneae bacterins or with saline at 3 and 5 weeks of age, and lymphocyte stimulation assays and serum antibody concentrations were measured on 7, 28, and 45 post vaccination days (PVD).
Journal ArticleDOI

Serum and mucosal antibody responses and protection in pigs vaccinated against Mycoplasma hyopneumoniae with vaccines containing a denatured membrane antigen pool and adjuvant

TL;DR: Pigs vaccinated with M hyponeumoniae antigens in the molecular size range of 70 to 85 kDa showed a significant reduction in lung lesions compared with unvaccinated control animals after experimental challenge, but IgG and IgA antibody concentrations in serum and respiratory tract washings after vaccination do not provide a useful prognostic indicator of protection from enzootic pneumonia.
Journal Article

Interaction of Mycoplasma hyopneumoniae and Pasteurella multocida infections in swine.

TL;DR: It is concluded that P multocida is not a primary respiratory pathogen in pigs, but that M hyopneumoniae infection can render the lungs susceptible to PMultocida colonization and infection.
Journal ArticleDOI

Evaluation of the ELISA and comparison to the complement fixation test and radial immunodiffusion enzyme assay for detection of antibodies against Mycoplasma hyopneumoniae in swine serum.

TL;DR: An enzyme-linked immunosorbent assay (ELISA) was evaluated for detection of antibodies (Ab) against Mycoplasma hyopneumoniae and M. flocculare in sera from swine experimentally infected with these agents.
Journal ArticleDOI

Colonisation state and colostral immunity to Mycoplasma hyopneumoniae of different parity sows.

M. Calsamiglia, +1 more
- 29 Apr 2000 - 
TL;DR: The epidemiology of M hyopneumoniae has been hindered by a lack of sensitive diagnostic tools to detect the presence of the organism in live animals, but recently, a nested polymerase chain reaction (nPCR) capable of detectingM hyop pneumoniae from nasal swabs has been described.
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