ERYSIPELAS.

Erysipelas occurs on various parts of the skin. It is caused by the inoculation through an abraded surface of a virulent form of the same streptococcus that commonly causes suppuration. It occurs chiefly in debilitated subjects. Some persons are specially prone to it, and may have many attacks. Erysipelas, like scarlet fever, occurs most in years in which there is deficient rainfall; and is probably conveyed by dust. It may spread, though exceptionally, from case to case.