Research
Gut bacteria plays a huge role in vaccine side effects
Earth.com · By Luis Arrais ·
The Brief
- Some people get noticeable side effects such as chills and headaches after a COVID-19 shot, while others barely notice any, and this split holds across doses.
- Researchers have found that part of the reason lies in gut bacteria, which were already present before the vaccine was given.
- The reporting is based on a single Earth.com article; the study's details are not given in the provided source.
Why it matters
It offers a biological explanation for why people differ in vaccine reactions, which could inform future work on predicting or managing side effects.
Who’s affected
- vaccine researchers
- readers interested in gut microbiome research
- #vaccines
- #gut microbiome
- #side effects
- #immunology
- #covid-19
For some people, a COVID shot means a night of chills and a headache. Others barely notice theirs, and the split holds, dose after dose. To some, this has always looked like luck. Researchers have now found part of the reason, and it was in the gut before the needle went in…