你肯定没看过的：免疫细胞作战场景特写

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B细胞（淋巴细胞）产生特定抗体针对单一病原体，图上B细胞被细菌覆着

Malaria protozoa have multiplied in two cells in a culture dish of red blood cells. One has burst open releasing the parasites to infect other cells

疟原虫分裂成2个个体，周围是红细胞，其中一个疟原虫已经破裂释放繁殖子影响其它细胞

First line of defense agains armies of dangerous microorganisms, skin tissue is able to mend itself rapidly after injury.

对抗微生物的第一防线，皮肤组织受伤之后可以迅速修复。

First step in phagocytosis, or “cell eating” a macrophage extends several pseudopods from it’s singlecelled form to embrace a number of E-coli bacteria

吞噬的第一步，巨噬细胞伸展伪足包围大肠杆菌

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