1990 Volume 34 Issue 4 Pages 397-399
A new invasive Escherichia coli strain which presented delayed or variable reactions in lactose, mucate, and acetate tests is described. It did not agglutinate with antisera for all known E. coli and Shigella groups A, B, C, D, and provisional Shigella serovar. We propose the designation of E. coli BH until the situation of its 0 antigen is settled.