Serologic Cross-Reactivity of Some Enterobacteriaceae Isolated in the United States with Cholera Vibrios

Abstract

Of 315 micro-organisms selected at random from stool cultures of persons in Chicago, 40 showed cross-reactions with diagnostic cholera sera when examined with the slide test, and 7 with the serial test-tube dilution method. The common antigen seems to be the "A" fraction of Vibrio comma and part of its "H" antigen, which also occurs in Brucellae and Salmonellae.