Pemphigus foliaceus in a Barbary sheep (Ammotragus lervia)

PEMPHIGUS foliaceus is an immune-mediated dermatopathy; it is most commonly diagnosed in dogs ([Ihrke and others 1985][1], [Mueller and others 2006][2], [Olivry 2006][3]), cats ([Kofod 1993][4], [Preziosi and others 2003][5]) and horses ([Laing and others 1992][6], [Vandenabeele and others 2004][7