Varicella

(var-is-eV ’-ah) [dim. of variola, small-pox]. Chicken-pox; an acute, contagious disease of childhood, characterized by an eruption of transparent vesicles, which appear in succe ive crops on different parts of the body. The incubation-period is about two weeks. The disease is usually mild, and runs its course in two or three days. In rare cases complications, such as nephritis, develop. 650