Sometimes the exanthema is merely the equivalent of simple measles or scarlatina of the intestinal mucous membrane, and many typhoid fevers of short continuance are nothing else in their nature.
"On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment"
Honoré Bourguignon
Dogma makes dogmas or dogmata; exanthema, exanthemas or exanthemata; miasm or miasma, miasms or miasmata; stigma, stigmas or stigmata.
"The Grammar of English Grammars"
Goold Brown