| 单词 | koch phenomenon |
| 释义 | > as lemmasKoch phenomenon Koch phenomenon n. (also Koch's phenomenon) the altered reaction to an inoculation of (living or dead) tubercle bacilli of an animal already infected with tuberculosis from that of a healthy animal, the infected animal showing a reaction which is quicker and locally more severe but which is not followed by a general infection; (now regarded as a classic example of delayed hypersensitivity).extracted from Kochn.< as lemmas |
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