SCIMAT / SCIENCE PHOTO LIBRARY SCIMAT / SCIENCE PHOTO LIBRARY
Conceptual image signifying beef contamination with E. Coli. Scanning electron micrograph of haemorrhagic Escherichia coli O157:H7 superimposed over a photograph of a beef steak. Image width: 25.64 micrometers. Magnification of the bacteria: 3900x if the entire image is printed 10 cm wide.
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