PMID: 11337137May 5, 2001Paper

A guinea pig model of low-dose Mycobacterium bovis aerogenic infection

Veterinary Microbiology
Mark A ChambersR Glyn Hewinson

Abstract

In order to develop a model of Mycobacterium bovis infection with pathogenetical relevance, a modified version of the Henderson apparatus was used to deliver infectious aerosols directly to the snouts of guinea pigs. Aerosols generated from 10(6), 10(7), 10(8)CFU/ml M. bovis suspensions established disease in every animal, with estimated retained doses of 10, 100, 1000 CFU, respectively. For comparison, other guinea pigs were inoculated with 100 CFU M. bovis intramuscularly (i.m.). Pathology and bacterial colonisation of lungs and spleen varied according to the dose and route of inoculation. Animals inoculated i.m. gave a significant cutaneous tuberculin hypersensitivity reaction earlier after testing than those infected aerogenically. A serological response to M. bovis antigens was detected in all infected animals. Intensity of antigen recognition was dose-dependent and although the range of antigens recognised varied between animals, a 25 kDa antigen present in the cell fraction was serodominant. Thus, a reproducible guinea pig model has been defined that may be suitable for virulence, vaccination, and immunological studies.

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Citations

Jan 28, 2003·Vaccine·Philip J HogarthMark A Chambers
Feb 22, 2012·American Journal of Respiratory and Critical Care Medicine·Naomi F WalkerPaul T Elkington
Dec 3, 2008·Emerging Infectious Diseases·Kurt C VerCauterenJanet Payeur
Jan 1, 2003·Research in Veterinary Science·C J C PhillipsR Teverson
Jun 10, 2009·Current Opinion in Immunology·Lewellys F BarkerJerald C Sadoff
May 12, 2006·Veterinary Immunology and Immunopathology·S LesellierM A Chambers
Apr 26, 2013·Vaccine·Thomas G EvansJelle Thole
Jan 4, 2020·The European Respiratory Journal·Carlos J OrihuelaJeremy S Brown

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