DONCASTER AND BASSETLAW HOSPITALS / SCIENCE PHOTO LIBRARY DONCASTER AND BASSETLAW HOSPITALS / SCIENCE PHOTO LIBRARY
A pill of antibiotic drug creates a clear area where colonies of Eschericia coli (E. coli) bacteria (brown) do not grow, to test the sensitivity of this bacterial strain to a drug. This E. coli was the cause of a urinary tract infection.
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