Concurrent Infection with Ranavirus, Batrachochytrium dendrobatidis, and Aeromonas in a Captive Anuran Colony

Four species (Dendrobates auratus, Phyllobates terribilis, Pyxicephalus adspersus, and Rhacophorus dennysi) of captive anurans with a clinical history of lethargy and inappetence were found dead and were submitted for necropsy. Gross lesions included irregular patches of sloughed skin and rare derma...

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Bibliographic Details
Published in:Journal of zoo and wildlife medicine 2008-09, Vol.39 (3), p.445-449
Main Authors: Miller, Debra L, Rajeev, Sreekumari, Brookins, Milagros, Cook, Jeff, Whittington, Lisa, Baldwin, Charles A
Format: Article
Language:English
Subjects:
Aeromonas hydrophila
Aeromonas hydrophila - isolation & purification
Amphibians
Animals
Anura
Anura - microbiology
anuran
Batrachochytrium dendrobatidis
CASE REPORTS
Chytridiomycota - isolation & purification
Comorbidity
concurrent infection
Dendrobates auratus
DNA Virus Infections - diagnosis
DNA Virus Infections - epidemiology
DNA Virus Infections - veterinary
Frogs
Gram-Negative Bacterial Infections - diagnosis
Gram-Negative Bacterial Infections - epidemiology
Gram-Negative Bacterial Infections - veterinary
Infections
Lesions
Mortality
Mycoses - diagnosis
Mycoses - epidemiology
Mycoses - veterinary
Pathogens
Phyllobates
Polymerase chain reaction
Pyxicephalus adspersus
Ranavirus
Ranavirus - isolation & purification
Rhacophorus
Skin
Species Specificity
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Summary:Four species (Dendrobates auratus, Phyllobates terribilis, Pyxicephalus adspersus, and Rhacophorus dennysi) of captive anurans with a clinical history of lethargy and inappetence were found dead and were submitted for necropsy. Gross lesions included irregular patches of sloughed skin and rare dermal ulcerations. Histologic findings included epidermal proliferation that was most pronounced on the digits and that included intracytoplasmic chytrid organisms. Bacteria were often associated with the epidermal lesions. Intracytoplasmic inclusion bodies were observed in hepatocytes. Real-time polymerase chain reaction yielded positive results for both Ranavirus and Batrachochytrium dendrobatidis (Bd). Bacterial culture of internal organs yielded Aeromonas hydrophila. This is the first report of concurrent infections in anurans by Ranavirus and Bd and A. hydrophila.
ISSN:1042-7260
1937-2825
DOI:10.1638/2008-0012.1