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https://hdl.handle.net/2440/11558
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dc.contributor.author | Wong, C. | - |
dc.contributor.author | Mayrhofer, G. | - |
dc.contributor.author | Heuzenroeder, M. | - |
dc.contributor.author | Atkinson, H. | - |
dc.contributor.author | Quinn, D. | - |
dc.contributor.author | Flower, R. | - |
dc.date.issued | 1996 | - |
dc.identifier.citation | FEMS Immunology and Medical Microbiology, 1996; 15(4):233-241 | - |
dc.identifier.issn | 0928-8244 | - |
dc.identifier.issn | 1574-695X | - |
dc.identifier.uri | http://hdl.handle.net/2440/11558 | - |
dc.description.abstract | Virulent and avirulent strains of Aeromonas spp. were identified and virulence quantified using an animal model. Virulence was measured by determining a 50% lethal dose (LD50) 43 h after oral administration of live bacteria. The LD50 of virulent Aeromonas isolates ranged from log10 7.53 (mean) organisms to log10 8.88 (mean). Some isolates were avirulent in this model. Detection of cytotoxic activity in culture supernatants correlated with virulence (Fisher exact test, P= 0.0029). There was no correlation between LD50 and the source of the isolate, β-haemolysis or lipopolysaccharide (LPS) banding profile on SDS-PAGE. In this animal model, virulence was multifactorial in that: (i) bacterial multiplication in the gut was associated with fatal infection; (ii) the increase in bacterial numbers in the gut of mice administered a lethal dose of bacteria was accompanied by accumulation of fluid; and (iii) there was evidence of extraintestinal spread of infection. Protection of suckling mice by rabbit antiserum to Aeromonas cell envelopes was observed. | - |
dc.description.statementofresponsibility | Wong, C.Y.F. ; Mayrhofer, G. ; Heuzenroeder, M.W. ; Atkinson, H.M. ; Quinn, D.M. ; Flower, R.L.P. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.source.uri | http://dx.doi.org/10.1111/j.1574-695x.1996.tb00089.x | - |
dc.subject | Aeromonas | - |
dc.subject | Virulence | - |
dc.subject | Suckling mice | - |
dc.title | Measurement of virulence of aeromonads using a suckling mouse model of infection | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/0928-8244(96)00063-6 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 7 Microbiology and Immunology publications |
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