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| Chinese | English |
| 传染 | infection The entry and development or multiplication of an infectious agent in the body of a living organism (传染性病原入侵活有机体并发展或复制的过程。) |
| 传染病 | infectious disease Pathogenic condition resulting from invasion of an host by a pathogen that propagates causing infection (由于会传染且引起发炎的病原宿主的侵入，而导致的疾病状态。) |
| 动物传染病 | zoonosis Diseases which are biologically adapted to and normally found in animals but which under some conditions also infect man (生物学中一般发现于动物体内的疾病，但它在一定条件下也感染人。) |