MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY MOREDUN ANIMAL HEALTH LTD / SCIENCE PHOTO LIBRARY
Bovine viral diarrhoea virus (BVDV). Coloured transmission electron micrograph of a cultured bovine embryonic testes cell infected with the BVDV virus, a type of pestivirus. The viruses are the small, red particles inside circular enclosures of rough endoplasmic reticulum (blue). The viruses are also seen in tubular structures, and some of these viruses show distinct envelopes. The red regions bound to the endoplasmic reticulum (blue seen in cross- section) are ribosomes. Magnification x20,000 at 6x4.5cm size.
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