 The disease caused by Batrachochytrium dendrobatidis is called chytridiomycosis . Frogs infected by this disease generally show skin lesions and hyperkeratosis , and it is believed that death occurs because of interference with skin functions including maintenance of fluid balance , electrolyte homeostasis , respiration and role as a barrier to infections . The time from infection to death has been found to be 1 – 2 weeks in experimental tests , but infected animals can carry the fungus as long as 220 days . There are several hypotheses on the transmission and vectors of the fungus . 
