The adhesion characteristics of enteroaggregative (EAggEC) to the mucosal surfaces of formalin-fixed paediatric intestinal and ureteral tissue were studied. The technique offers a means of overcoming the problem of limited tissue access in childhood and a way of examining the initial steps of bacterial adhesion. Five EAggEC strains isolated from children with diarrhoea in the UK and a well characterised, prototype EAggEC strain (221) were examined. Five of the six EAggEC strains showed preferential adhesion to jejunal mucosa with limited adhesion to ileum and colon. Five of the six also adhered to ureteric tissue. EAggEC can adhere to proximal, as well as distal, regions of the gastrointestinal tract in children, a previously unrecognised characteristic.


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