Low incidence of heat-labile enterotoxin-producing Escherichia coli strains in the Federal Republic of Germany.
D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003967:Diarrhea / Q000382:microbiology*; D004926:Escherichia coli / Q000302:isolation & purification*; D005260:Female; D005860:Germany, West; D006801:Humans; D008828:Microbiological Techniques