MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY
Transmission electron micrograph of a group of astroviruses known to cause diarrhoea and vomiting in humans, especially children, and in sheep, cattle and deer. The virus is small (28 nanometres) and has not been recorded widely in the world. Magnification: x160,000 at 5x6 inches size.
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