Andean frogs have been hit by a fungal disease called chytridiomycosisEmanuele Biggi/naturepl.com By Adam VaughanThe extinction of 90 species of amphibians can be pinned on a deadly fungal disease, according to the most comprehensive exercise yet to map its impact. In total, chytridiomycosis contributed to the decline of more than 500 species of frogs, toads and salamanders, or…