GO:0002544

Inflammation of prolonged duration (weeks or months) in which active inflammation, tissue destruction, and attempts at repair are proceeding simultaneously. Although it may follow acute inflammation, chronic inflammation frequently begins insidiously, as a low-grade, smoldering, often asymptomatic response. [GO_REF:0000022, GOC:jal, GOC:mtg_15nov05, ISBN:0781735149]