Patterns of haemagglutinating activity of Escherichia coli.

MR and MS adhesins on 169 strains of Escherichia coli subjected to different cultural conditions were detected. Haemagglutination Test (static settling test in plastic microtiter trays) was used and several species of red blood cells were employed. The results confirm that different media can influence the expression of the adhesins and that using as many species of red blood cells as possible one can detect different adhesins.