Present Status of the El Tor Vibrio Problem.

INTRODUCTION................................................................................. 72 GEOGRAPHY AND PATHOGENICITY............................................................... 72 TAXONOMY..................................................................................... 73 BIOCHEMICAL PROPERTIES...................................................................... 73 ANTIGENS AND TOXIN S ........................................................................ 74 PHAGE SUSCEPTIBILITY......................................................................... 76 ANIMAL EXPERIMENTS......................................................................... 76 ISOLATION AND IDENTIFICATION ................................................................ 77 IMMUNOLOGICAL TESTS WITH HUMAN SERA..................................................... 80 VACCINATION................................................................................. 81 SUMMARY AND CONCLUSIONS ................................................................... 81 LITERATURE CITED............................................................................ 81