Varicella

(var-is-el ' -ah). An acute, specific, infectious disease of children, popularly known as chicken-pox. It has an incubation-period of from eight to fourteen days, and is rarely preceded by a premonitory stage of slight fever and roseolous rash. This latter appears first on the back or chest, as scattered, slightly elevated, round, rose-colored spots; these are quickly followed by an eruption of glabrous, transparent vesicles, which appear in succe ive crops on different parts of the body there may be four or five of these crops bursting the third to the fifth day from their appearance, finally leaving small, punctured scabs. There are general ly but slight febrile symptoms. V. coniform is, swinepox; varicella in which the vesicles are conic. V., Conoidal. Same as coniform is. V. gangraenosa. See Derrjiatitis gangrenosa infantum. V. globata, swine-pox; hives; varicella in which the vesicles are hemispheric. V. Hutch in son's for the occurrence in mildest cases of var i cell i term of fresh crops of papules and pustules, the proce lasting for weeks, and being accompanied by a good deal of itching, but by very little if any ulceration. V., Pustular. Same as Varioloid. V. syphilitic a, a syphiloderm having the form of a varicellar eruption.