Specific Pathogen Free 无特定病原体动物 ; 无特定病原体 ; 无特定病原 ; 特定病原
pathogen-specific treatment 病原治疗
specific pathogen free animal 无特定病原体动物 ; 特种无菌动物 ; 病原体动物 ; 特定病原体动物
specific-pathogen-free pig 无特定病原猪
Specific pathogen free animals 无特殊病原体动物 ; 即无特定病原体动物
Specific pathogen free SPF 无特定病原体
specific pathogen free pigs spf猪
specific pathogen free herd 无特定病原群
specific pathogen free flock 无特定病原鸡群
primary specific pathogen-free 初代无特定病原
Mleprae was the first bacterial pathogen to beassociated with a specific human disease. It was discovered by GH ArmauerHansen in Norway (pictured).
麻风杆菌是第一个被认为与人类疾病相关的致病菌，由挪威人——阿莫尔·汉森（上图）发现。
Production of antibodies: the pathogen ACTS as an antigen which stimulates the production of specific chemicals called antibodies by lymphocytes (white blood cells).
产生抗体：病原体作为抗原会刺激淋巴球(白血球)产生一种称为抗体的化学物。
In the final stage of antibody development, antibody-producing B cells recognize specific parts of a pathogen and then mutate, or mature, so the antibody can bind to the pathogen more firmly.
在抗体发育的最后阶段，抗体生成B细胞识别病原体的特定部分，然后变异或者成熟，所以抗体可以结合病原体更加牢固。
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