Science

Vaccine Side Effects Linked to Gut Microbiome

Updated 2026-10-09 11:55 UTC 1 source Neutral

A new study suggests that people who experience more severe fevers after a COVID vaccine may have similar gut microbiome characteristics. Researchers found this correlation in participants with worse reactions.

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Scientific American

Feverish after a vaccine? The reason could be your gut microbiome

In a new study, people who had worse fevers after a COVID shot tended to have similar gut characteristics

2026-10-09 10:00 UTC