<b>Unique Colonization Tactics of E. coli Linked to Crohn’s Disease in Macrophages</b>

Intramacrophagic survival ratio of 13 AIEC strains, 2 strains closely related to AIEC (ECG04 and ECG28), IAI4 (a commensal strain), and 3 pathogenic strains (S. flexneri, S. typhimurium LT2, and UPEC CFT073) within THP-1 macrophages over 24 hours, compared to 1 hour.