Reference : Study of the Virulence of Five Strains of Amyxomatous Myxoma Virus in Crossbred New Zeal...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/6111
Study of the Virulence of Five Strains of Amyxomatous Myxoma Virus in Crossbred New Zealand White/Californian Conventional Rabbits, with Evidence of Long-Term Testicular Infection in Recovered Animals
English
Marlier, Didier mailto [Université de Liège - ULg > > Médecine des oiseaux, des lagomorphes et des rongeurs >]
Mainil, Jacques mailto [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Bactériologie et pathologie des maladies bactériennes >]
Sulon, Joseph [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie de la reproduction >]
Beckers, Jean-François mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Physiologie de la reproduction >]
Linden, Annick mailto [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Santé et pathologies de la faune sauvage >]
Vindevogel, Henri mailto [Université de Liège - ULg > Services généraux (Faculté de médecine vétérinaire) > Relations académiques et scientifiques (Méd. vétérinaire) >]
2000
Journal of Comparative Pathology
Academic Press
122
2-3, Feb-Apr
101-13
Yes (verified by ORBi)
International
0021-9975
Liverpool
United Kingdom
[en] The virulence of five amyxomatous myxoma virus (MV) strains, the clinical and pathogenetic effects of which had been studied previously in specific pathogen-free (SPF) rabbits, was determined by inoculation of five groups of 10 crossbred New Zealand White/Californian conventional rabbits. A much more acute myxomatosis syndrome was produced in conventional rabbits than that reproduced previously in SPF animals. However, the main clinical signs were of the respiratory type. The MV strains MYX 254/95 and 801 appeared very virulent, killing all the inoculated animals. The strains MYX 217/95, MYX 555/94 and Saint Benoist were somewhat attenuated, killing only seven, six and six rabbits, respectively. Extensive lung lesions due to supervening bacterial infections were observed in 36 of the 39 rabbits that died. Lethality was found to be a better estimate of virulence than mean survival time. By 98 days after viral inoculation, all the surviving animals had completely recovered. At that time, they were immunosuppressed by treatment with adrenocorticotrophic hormone (ACTH) for 10 days to determine whether they still harboured the virus. After the ACTH treatment, eight of the 11 surviving rabbits showed clinical signs that resembled amyxomatous myxomatosis. All the virological examinations performed on naso-conjunctival exudate, on mononuclear cells, on eyelids and on ovaries remained negative but infectious virus was isolated from the testes of three of six surviving male rabbits.
Researchers ; Professionals ; Students ; Others
http://hdl.handle.net/2268/6111
also: http://hdl.handle.net/2268/26905
10.1053/jcpa.1999.0345

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