Chytrid fungus and ranavirus have devastated amphibian populations globally, and biosecurity measures can prevent further spread to unaffected populations.
Amphibians infected with chytrid fungus suffer disruption to skin function including electrolyte balance and respiration through the skin. Death from chytridiomycosis can be prolonged and is likely accompanied by physiological suffering. The scale of global amphibian declines means the total welfare burden from these diseases is enormous. Biosecurity measures that prevent spread preserve both populations and individual animal welfare.