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  • 1
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The use of a 16S rRNA based polymerase chain reaction (PCR) for the detection ofMycoplasma pneumoniae infection was investigated. Sputum samples from 34 patients with respiratory illness and evidence of pneumonia as judged by chest X-ray were analyzed by PCR and microbiological culture. Throat swabs from 14 healthy individuals were used as controls. For serology, an enzyme immunoassay for the detection of immunoglobulin M antibodies and a complement fixation assay were performed. Evidence ofMycoplasma pneumoniae infection was obtained in ten patients (29 %), eight of whom were found positive by both PCR and serology. Two of the sputum samples from these eight patients were negative by culture. Of the remaining two patients positive forMycoplasma pneumoniae, one was positive by PCR and culture but negative by serology, and one was found positive by serology but negative by PCR and culture. Thirteen of the 14 controls were negative by both PCR and serology. One control, however, was negative by serology but positive by PCR, which was probably due to asymptomatic carriage ofMycoplasma pneumoniae. The results of this study indicate the suitability of the PCR for the detection ofMycoplasma pneumoniae in clinical samples as well as its potential value as an additional tool for the diagnosis of infection.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Tropical animal health and production 27 (1995), S. 193-201 
    ISSN: 1573-7438
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Après une absence d'environ 25 ans la péripneumonie contagieuse bovine est de nouveau apparue en 1990 en Tanzanie. Elle a été prècedée d'une progression au Kenya vers une zone bordant la Tanzanie. Par suite de mouvements frontaliers fréquents du bétail, elle a été beintôt introduite dans la région de Loliondo, dans le nord de la Tanzanie. Un mois après les premiers cas, 9 troupeaux totalisant 1500 têtes ont été supectés. Cependant, peu d'animaux ont présenté des signes cliniques nets et, de surcroît, les traitements antibiotiques entrepris en début de maladie obscurissent le tableau clinique. Le diagnostic a été confirmé à l'autopsie dans un troupeau présentant des cas cliniques etMycoplasma mycoides subsp.mycoides, type SC, a été isolé. Plusieurs échantillons de sérum de ce troupeau ont été positifs en fixation du complément et ont donné de grandes valeurs d'absorption dans un test ELISA avec un antigèneM. mycoides subsp.mycoides. Pour 5 autres troupeax avec des cas suspects, les échantillons de sang ont été négatifs en fixation du complément mais un au moins pour chaque troupeaux a été positif dans un test ELISA.
    Abstract: Resumen Después de un período de 25 años sin ningún brote, la pleuroneumonía contagiosa bovina apareció de nuevo en Tanzania en 1990, después de que la enfermedad se extendiera a una zona de Kenya fronteriza con Tanzania. Debido a los frecuentes movimientos de ganado vacuno a través de la frontera, la enfermedad se declaró pronto en Loliondo, en el norte de Tanzania. Un mes después de los primeros casos, 9 rebaños, que contabilizaban en total 1500 animales, eran sospechosos de estar infectados. Sin embargo, pocos animales mostraron síntomas clínicos claros y et tratamiento precoz con antibióticos contribuyó a disminuir la intensidad de las manifestaciones clinicas. En un rebaño en el que hubo casos agudos el diagnóstico se confirmó mediante necropsia y se aislóMycoplasma mycoides subsp.mycodies del tipo SC. Varias muestras de sangre de este rebaño dieron resultado positivo en el test de fijación del complemento y dieron valores de absorbancia altos en un test de ELISA conM. mycoides subsp.mycoides. Las muestras de sangre provenientes de otros 5 rebaños en los que se sospechó la existencia de la enfermedad dieron resultado negativo en el test de fijación de complemento mientras que al menos un animal de cada rebaño dio resultado positivo en el test ELISA.
    Notes: Summary After an absence of about 25 years contagious bovine pleuropneumonia (CBPP) appeared again in 1990 in Tanzania. It was preceded by a spread in Kenya to an area bordering Tanzania. Due to the frequent cattle movements across the border it was soon introduced into Loliondo in northern Tanzania. One month after the first cases, CBPP was suspected in a total of 9 herds comprising 1,500 cattle. However, few animals showed clear clinical signs and frequent antibiotic treatment at an early stage further obscured the clinical picture. In one herd with acute cases, the diagnosis was confirmed by autopsy andMycoplasma mycoides subsp.mycoides, SC type, was isolated. From this herd several serum samples were positive in the complement fixation test and gave high absorbance values in an ELISA withM. mycoides subsp.mycoides antigen. From 5 other herds with suspected cases blood samples were negative by the complement fixation test but in the enzyme-linked immunosorbent assay at least one in each herd was positive.
    Type of Medium: Electronic Resource
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