Answer: pian

AnswerCrossword Clue
PIANYaws (truly!)
PIANYaws (the disease)
piana tropical disease
pian(used with a sing. v.) infectious, nonvenereal tropical disease, primarily of children, characterized by raspberrylike eruptions of the skin and caused by a spirochete, Treponema pertenue, that is closely related to the agent of syphilis