From: Cytotoxic Escherichia coli strains encoding colibactin and cytotoxic necrotizing factor (CNF) colonize laboratory macaques
2012
2014
2016
Total
E. coli positive animals
51/84 (60.7%)
72/85 (85.7%)
73/97 (75.3%)
196/266 (73.7%)
β-hemolytic E. coli isolates
4/66 (6.1%)
16/84 (19.0%)
23/89 (25.8%)
43/239 (18.0%)