My frogs are Chytrid free

I had my frogs tested for Chytrid fungus in a German veterinary laboratory EXO MED
this summer, with a NEGATIVE result.
Chytridiomycosis is an infectious disease in amphibians, caused by the chytrid fungi Batrachochytrium dendrobatidis and Batrachochytrium salamandrivorans, a non-hyphal zoosporic fungus.
For more info about this disease you can googled: Chytrid fungus