Paratuberculosis: Organism, Disease, Control
Almost 100 years ago, Twort and Ingram (1913), in their excellent monograph on Johne’s disease (often now called paratuberculosis), reported many of the features that have since been confirmed by much further study. They stated that most farms only have a few cases of the disease a year, that th...
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| Những tác giả chính: | , |
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
CABI
2014
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/36876 |
| Các nhãn: |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | Almost 100 years ago, Twort and Ingram (1913), in their excellent monograph on Johne’s disease (often now called paratuberculosis), reported many of the features that have since been
confirmed by much further study. They stated that most farms only have a few cases of the
disease a year, that the disease is never seen in very young animals, that cows often develop
the disease soon after calving, and that mature, healthy animals put on to an infected farm do
not subsequently develop the disease. The economic costs of the disease are calculated and
shown to be significant in the currency values of the time. While the word ‘supershedder’ is not
mentioned, there is a clear statement that animals with advanced disease discharge the largest
numbers of organisms in their faeces and are the source of the disease for other animals. In the
same year as this book appeared, the possibility that the organism that causes Johne’s disease
might also cause human inflammatory bowel disease was also first suggested (Dalziel, 1913).
Plainly, this is not a disease on which fast progress has been made. |
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