Submitted by Enocli t3_yia9a5 in askscience
InviolableAnimal t1_iuj6f0h wrote
Reply to comment by tr14l in How do white blood cells know in which direction there is a bacteria? by Enocli
No, it's more like they follow the bacteria by smell (detecting its chemical traces, and also the communication "scents" of other WBCs) rather than "sight".
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