Ranaviruses in captive and wild Australian lizards

Maclaine, A.; Wirth, W.T.; McKnight, D.T.; Burgess, G.W.; Ariel, E.; Maclaine, A; Wirth, W.T; McKnight, D.T; Burgess, G.W; Ariel, E

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Ranaviruses in captive and wild Australian lizards

Maclaine, A.; Wirth, W.T.; McKnight, D.T.; Burgess, G.W.; Ariel, E.

FACETS 5(1): 758-768

2020

ISSN/ISBN: 2371-1671

Accession: 087044190

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Summary

Ranaviral infections have been associated with mass mortality events in captive and wild amphibian, fish, and reptile populations globally. In Australia, two distinct types of ranaviruses have been isolated: epizootic haematopoietic necrosis virus in fish and a Frog virus 3-like ranavirus in amphibians. Experimental studies and serum surveys have demonstrated that several Australian native fish, amphibian, and reptile species are susceptible to infection and supported the theory that ranavirus is naturally circulating in Australian herpetofauna. However, ranaviral infections have not been detected in captive or wild lizards in Australia. Oral-cloacal swabs were collected from 42 wild lizards from northern Queensland and 83 captive lizards from private collections held across three states/territories. Samples were tested for ranaviral DNA using a quantitative PCR assay. This assay detected ranaviral DNA in 30/83 (36.1%) captive and 33/42 (78.6%) wild lizard samples. This is the first time molecular evidence of ranavirus has been reported in Australian lizards.