AstraZeneca’s vaccine against Covid uses an adenovirus, specifically a common cold virus from chimpanzees, to train the immune system to fight the virus.The researchers thought the adenovirus might be linked to the rare clots occurring in some people. So they used a technique called cryo-electron microscopy to take images of the adenovirus in molecular-level detail, the report said.Their study, published in the journal Science Advances, revealed that the outer surface of the adenovirus attracts the platelet factor four protein to it like a magnet, the report said.
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