DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Cryptosporidium parvum, protozoan (cyst stage) found in water contaminated by calf faeces, coloured scanning electron micrograph (SEM). A zoonotic microorganism, it passes in water to humans causing the microsporidial intestinal infection known as cryptosporidiosis. Magnification: x3,165 when shortest axis printed at 25 millimetres.
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