Phenotypic and genotypic characteristics associated with biofilm formation in clinical isolates of atypical enteropathogenic Escherichia coli (aEPEC) strains

Table 1 Biofilm formation in 126 clinical isolates of aEPEC strains

Serotype		No. of strains (total/biofilm producers)^a
		Patients	Controls	Total
EPEC serotypes
	O26:H11;HND	9/2	1/0	10/2
	O55:HND	4/1	1/0	5/1
	O111:NM	2/1	2/1	4/2
	O114:NM	0	1/0	1/0
	O119:H2;HND	9/4	1/0	10/4
	O125:HND	0	1/0	1/0
	O126:NM	1/1	0	1/1
	O127:NM;H40	4/2	1/0	5/2
	O128:NM	2/0	0	2/0
	O142:NM;H2	10/1	0	10/1
Non-EPEC serotypes^b		23/5	12/2	35/7
ONT:H18/NM; HND		28/15	14/2	42/17
Total		92/32	34/5^c	126/37

^aBiofilm assays were performed in 96-well polystyrene microtiter plates in Luria broth and incubated for 24 h at 26°C and 37°C.
^bO4:HND; O15:HND O33:H6; O35:H19; O37:HND; O49:HND; O61:HND; O63:HND; O79:HND; O85:H40; O96:HND; O98:HND; O101:HNM; O103:HNM; O105:H7; O108:H31; O109:H54; O117:HND; 0132:HND; O141:HND; O1523H2; O156:H16; O157:NM; O167:H6; O169:H6; O175:HND.
^CP < 0.05 (patients x controls).

ISSN: 1471-2180