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Killer frog disease
A fungus that kills amphibians is responsible for the biggest documented loss of nature from a single disease, say researchers.
Better biosecurity and wildlife trade restrictions are urgently needed to prevent any more extinctions, they say.
The disease, chytridiomycosis, has caused mass die-offs in frogs, toads and salamanders over the past 50 years,
including extinctions of 90 species, according to a review of evidence.
It has spread to over 60 countries.