Digital dermatitis-associated treponemes in a wound in a sheep

THE three pathogenic treponemes associated with bovine digital dermatitis (DD), Treponema medium, Treponema phagedenis and Treponema pedis, have been reported to infect a variety of tissues and structures in cattle, including pressure sores ( Clegg and others 2016c ), hock lesions ( Clegg and others 2016a ), the so-called 'non-healing' hoof disorders ( Evans and others 2011 ), and ischaemic teat necrosis lesions ( Clegg and others 2016b ).