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Gut Bacteria Flagellin Drives Post-Vaccine Fever Spikes, Science Study Finds
A study in Science led by the University of Tübingen reveals that flagellin proteins from certain motile gut bacteria drive post-vaccination fever spikes. The bacterial proteins trigger latent systemic inflammation, which flares into elevated body temperatures once a vaccine activates the immune system. The finding indicates daily diet and microbiome composition directly shape how intensely your body reacts to routine immunizations.
A study in Science led by the University of Tübingen reveals that flagellin proteins from certain motile gut bacteria drive post-vaccination fever spikes. The bacterial proteins trigger latent systemic inflammation, which flares into elevated body temperatures once a vaccine activates the immune system. The finding indicates daily diet and microbiome composition directly shape how intensely your body reacts to routine immunizations.
The architecture take
I used to assume a raging fever after a jab was purely about my immune system mounting a heroic response. I spent two days flat on my back after my last booster blaming the formulation. The gut struck again. Researchers at the University of Tübingen found that flagellin proteins from specific swimming gut bacteria prime systemic inflammation, dialing up temperature spikes after vaccination. If your microbiome leaks these bacterial motor parts into circulation, your baseline inflammatory state is already idling hot. Diet shapes which bugs thrive, meaning what you ate over the past month quietly dictates whether you spend post-shot day shivering. I hate how often gut microbes turn out to be the culprit behind everyday physical misery, but the mechanics make sense. You cannot swap your genetics before an injection, but tending to gut barrier permeability might spare you thirty-six hours of chills.