Efficacy of select disinfectants at inactivating Ranavirus

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Ranavirus can cause disease in reptiles and amphibians. Because survival time outside of a host remains uncertain, equipment must be disinfected to prevent transmission of ranaviruses. However, disinfectant efficacy against amphibian ranaviruses has not been investigated for chlorhexidine (Nolvasan®), sodium hypochlorite (bleach), or potassium compounds. Our goal was to determine the efficacy of Nolvasan® (0.25, 0.75 and 2.0%), bleach (0.2, 1.0, 3.0 and 5.0%), and Virkon S® (1.0%) at inactivating Ranavirus at 1 and 5 min contact durations. Potassium permanganate (KMnO4) (2.0 and 5.0 ppm) was also tested with a 60 min contact time. Nolvasan® at 0.75 and 2.0% and bleach at 3.0 and 5.0% concentration were effective for both contact durations. Virkon S® was effective for both durations, but KMnO4 was not effective at either concentration. Concentrations of Nolvasan®, bleach and Virkon S® that are at least 0.75, 3.0 and 1.0%, respectively, are effective at inactivating Ranavirus after 1 min exposure time. © Inter-Research 2009.




Bryan, L. K., Baldwin, C. A., Gray, M. J., & Miller, D. L. (2009). Efficacy of select disinfectants at inactivating Ranavirus. Diseases of Aquatic Organisms, 84(2), 89–94. https://doi.org/10.3354/dao02036

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