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.
Definition of creep for English Language Learners. : 1  to move slowly with the body close to the ground. : 2  to move slowly and quietly especially in order to not be noticed. : 3  to go or seem to go very slowly.