Bovine prion disease research. Veterinary medical officer drawing a blood sample from a domestic cow (Bos primigenius) that has been tethered and restrained. The sample will be tested for prion diseases. This sampling is being carried out by the Agricultural Research Service (ARS) of the US Department of Agriculture. Photographed in the USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Ausmus, Stephen / US Department of Agriculture |
Bildgröße: | 3307 px × 2640 px |
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