Horseshoe crab blood is used in vaccines: This is why | Oneindia News

The horseshoe crab blood is vital for making vaccines, and now due to the race to combat the coronavirus, these living fossils, are hitting the headlines again. the horseshoe crab blood is blue because of its rich copper content and it is the only known natural source of limulus amebocyte lysate or LAL which is a substance that detects a contaminant called endotoxin. Learn more

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