Natural Habitat
While relatively uncommon, E. coli O157:H7 can naturally be found in the intestinal contents of some cattle. Because ruminants lack a receptor for the toxin the bacteria produce, it does not cause disease in them and is considered commensal.
Read more about this topic: Escherichia Coli O157:H7
Famous quotes containing the words natural and/or habitat:
“What is most interesting and valuable in it, however, is not the materials for the history of Pontiac, or Braddock, or the Northwest, which it furnishes; not the annals of the country, but the natural facts, or perennials, which are ever without date. When out of history the truth shall be extracted, it will have shed its dates like withered leaves.”
—Henry David Thoreau (1817–1862)
“Nature is the mother and the habitat of man, even if sometimes a stepmother and an unfriendly home.”
—John Dewey (1859–1952)