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jan 1, 1796 - 现代免疫学的开端
Description:
英国医生詹纳首次给一名男孩接种牛痘以预防天花,标志着现代免疫学的开端。
Added to timeline:
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By
Ray
5 months ago
0
0
42
Date:
jan 1, 1796
Now
~ 230 years ago
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