Table 3.

Clinical picture of the four patients with reactive arthritis (ReA)

	Patient 1	Patient 2	Patient 3	Patient 4
Age, years	48	47	50	50
Gender (M/F)	M	F	F	F
Pathogen	EPEC EAEC	EPEC	EPEC	EPEC
Affected joints	Knees	Toe; finger	Feet; knees; elbows	Shoulder; elbow; wrist
Joint swelling	−	+	−	+
Arthtralgia	+	+	+	+
Low back pain	+	−	+	−
HLA-B27 antigen	−	−	−	−
Duration of ReA (months)	2	10	3	1

EAEC, enteroaggregative E.coli; EPEC, enteropathogenic Escherichia coli; F, female; M, male; ReA, reactive arthritis.