母牛口蹄疫的齿垫愈合期病变
Healing foot-and-mouth disease lesion on the dental pad of a cow. This was a contact animal on day 10 after experimental exposure. Abundant fibrin deposition indicates an old lesion. Material collected from such lesions often contains only small amounts of viral RNA, and there might not be any infectious virus at all.
Courtesy of National Veterinary Institute, DTU Vet, Lindholm, Denmark.
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