Document Detail

A report of mycobacteriosis caused by Mycobacterium marinum in bullfrogs (Rana catesbeiana).
MedLine Citation:
PMID:  16427595     Owner:  NLM     Status:  MEDLINE    
The occurrence of mycobacteriosis caused by Mycobacterium marinum in a commercial breeding farm of bullfrogs (Rana catesbeiana) in Rio de Janeiro, Brazil is described. Ten animals presented skin lesions on the head and extremities. These and 38 other asymptomatic adult animals from various tanks were killed and at necropsy disseminated granulomatous lesions were observed in the 10 clinically affected animals and in 16 (42.1%) of the asymptomatic frogs. Acid-fast bacilli were observed in all smears of the 10 symptomatic frogs and in all but one from the 16 asymptomatic animals with visceral lesions. Ten samples from the 25 positive animals were randomly selected for culture which yielded four isolates of fast-growing (<7 days) mycobacteria. Those purified isolates were characterised by biochemical traditional means as M. marinum. Identification of the strains was confirmed using reverse-phase high-performance liquid chromatography and a polymerase chain reaction (PCR) restriction enzyme analysis assay. It is suggested that M. marinum is an important agent of granulomatous disease in bullfrogs and that infected animals, even when asymptomatic, could act as reservoirs spreading the disease and contaminating other frogs in the farm.
Rachel Ferreira; Leila de Souza Fonseca; André Muniz Afonso; Marlei Gomes da Silva; Maria Helena Saad; Walter Lilenbaum
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2004-11-18
Journal Detail:
Title:  Veterinary journal (London, England : 1997)     Volume:  171     ISSN:  1090-0233     ISO Abbreviation:  Vet. J.     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-01-23     Completed Date:  2006-05-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706281     Medline TA:  Vet J     Country:  England    
Other Details:
Languages:  eng     Pagination:  177-80     Citation Subset:  IM    
Veterinary Bacteriology Laboratory, Universidade Federal Fluminense, Niterói, 24210-130 Rio de Janeiro, Brazil.
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MeSH Terms
Brazil / epidemiology
Disease Reservoirs / veterinary
Fatal Outcome
Mycobacterium / classification,  isolation & purification*
Mycobacterium Infections / epidemiology,  veterinary*
Rana catesbeiana* / microbiology
Comment In:
Vet J. 2006 Jan;171(1):18-9   [PMID:  16427579 ]

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