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Volume 29, Number 6—June 2023
Dispatch

Ranid Herpesvirus 3 Infection in Common Frog Rana temporaria Tadpoles

Francesco C. OriggiComments to Author  and Annette Taugbøl
Author affiliations: University of Messina, Messina, Italy (F.C. Origgi); University of Bern, Bern, Switzerland (F.C. Origgi); Norwegian Institute for Nature Research, Lillehammer, Norway (A. Taugbøl)

Main Article

Figure 2

Location of sampling areas in study of ranid herpesvirus 3 infection in common frog Rana temporaria tadpoles, Norway. We collected 14 sample batches of free-ranging tadpoles (3–13 tadpoles per batch) either directly from or in close (<10 m) proximity to 5 ponds in Norway in 2022, where adult frogs with lesions consistent with ranid herpesvirus 3 (RaHV3) infection were observed earlier in the year. Maps show locations of ponds in Lillehammer, Skytta, and Gjelleråsen and the distances (in meters) between them. The 2 ponds marked collectively as 3b are linked by marshland in which adult frogs breed independently and are, therefore, treated as 1 complex. We found 2 of 14 sampled tadpole batches were positive for RaHV3 by using PCR, corresponding to pond areas in Lillehammer and Skytta. After testing each tadpole in the positive batches, we identified 6 of 13 tadpoles from the Lillehammer pond and 1 of 4 from the Skytta pond that were RaHV3-positive.

Figure 2. Location of sampling areas in study of ranid herpesvirus 3 infection in common frog Rana temporaria tadpoles, Norway. We collected 14 sample batches of free-ranging tadpoles (3–13 tadpoles per batch) either directly from or in close (<10 m) proximity to 5 ponds in Norway in 2022, where adult frogs with lesions consistent with ranid herpesvirus 3 (RaHV3) infection were observed earlier in the year. Maps show locations of ponds in Lillehammer, Skytta, and Gjelleråsen and the distances (in meters) between them. The 2 ponds marked collectively as 3b are linked by marshland in which adult frogs breed independently and are, therefore, treated as 1 complex. We found 2 of 14 sampled tadpole batches were positive for RaHV3 by using PCR, corresponding to pond areas in Lillehammer and Skytta. After testing each tadpole in the positive batches, we identified 6 of 13 tadpoles from the Lillehammer pond and 1 of 4 from the Skytta pond that were RaHV3-positive.

Main Article

Page created: April 12, 2023
Page updated: May 17, 2023
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