Ranavirus predicted to be potential new culprit in amphibian extinctions

Amphibian declines and extinctions around the world have been linked to an emerging fungal disease called chytridiomycosis, but new research from shows that another pathogen, ranavirus, may also contribute. In a series of mathematical models, researchers showed that ranavirus, which causes severe hemorrhage of internal organs in frogs, could cause extinction of isolated populations of wood frogs if they are exposed to the virus every few years, a scenario that has been documented in wild populations.

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