Healthy and infected cows. Thermogram (infrared) images of a cow infected with the foot-and-mouth-disease virus (left) and a healthy cow (right). The effects of the disease cause the hooves to be hotter than usual,showing up on the thermogram as a red colour at left. For the uninfected cow at right,no heat or red colour is seen in the hooves. Foot-and-mouth disease is caused by viruses in the picornavirus group. It is highly contagious,spreading by direct contact with infected animals. Infected farm animals are slaughtered and burnt to remove contamination | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Packer, Craig / US Department of Agriculture |
Bildgröße: | 4912 px × 3398 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |