title: [The rate of healthy carriers of Listeria monocytogenes].
abstract: The feces of 318 healthy adults were examined for L. monocytogenes by means of the cold enrichment and of two different selective media (nalidixic acid-trypaflavin-serum agar; Braveny medium). 15 persons (4.7 percent) proved to be carriers. Three of the 15 strains only caused hemolysis on sheep blood agar and belonged to serotypes 1/2b, 1/2c and 3c. The nonhemolytic strains without exception belonged to serotypes 4f and 4g. The Braveny medium proved to be superior to the nalidixic acid-trypaflavin-serum agar for isolating L. monocytogenes from feces.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002353:Carrier State / Q000453:epidemiology*; D002675:Child, Preschool; D003080:Cold Temperature; D003470:Culture Media; D005243:Feces / Q000382:microbiology; D005260:Female; D005860:Germany, West; D006461:Hemolysis; D006801:Humans; D008089:Listeria monocytogenes; D008088:Listeriosis / Q000453:epidemiology; D008297:Male; D008875:Middle Aged
chemical_list: D003470:Culture Media
vernacular_title: UNTERSUCHUNGEN ZUR HAUFIGKEIT DER LISTERIEN-KEIMTRAGER