Regeneration from stem cell-derived EVs could presumably prevent implantation rejection side effects, but still maintain the growth stimulation ability, like a stem cell itself. In terms of the impact on disease treatment, such as COVID or chronic infection, stem cell-derived EVs could probably do even better than steroids at decreasing inflammation, based on the research. This immunomodulation ability from stem cell-derived EVs could go beyond our imagination. There are only a few clinical

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... ls that have directly applied EVs so far, but things look promising."