The bacteria that cause necrotizing fasciitis can enter the body following surgery or injury. They can also enter the body through: 1  minor cuts. 2  insect bites. 3  abrasions.
Gradual definition, taking place, changing, moving, etc., by small degrees or little by little: gradual improvement in health. See more.
A pattern of gradual change in a condition, output, or process, or an average or general tendency of a series of data points to move in a certain direction over time, represented by a line or curve on a graph.