AI Summary

Researchers at Penn State tested vitamin D’s effect on influenza in mice, finding that it may reduce lung inflammation and viral load during H1N1 infection. The study, published in *Frontiers in Immunology*, examined how vitamin D receptors (VDR) and parathyroid hormone influence the immune response to the virus. Results suggest that activating VDR pathways could help the body control the severity of flu‑induced lung damage. The findings point to a potential therapeutic role for vitamin D in managing influenza infections.

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