Fig. 1From: Recurrent bacteremia with a hypermucoviscous Escherichia coli isolated from a patient with perihilar cholangiocarcinoma: insights from a comprehensive genome-based analysisString test of E. coli isolate 537–20. A Strain was streaked out on Müller-Hinton sheep blood agar and incubated overnight at 37 °C. An inoculation loop (blue) was rubbed onto the colonies and pulled up vertically, forming a string (string test positive). B Close-up of string formed and indicated by arrowsBack to article page