Skin cells live about thirty days, and liver cells die after about eighteen months. Brain and heart cells last a lifetime. The LNPs likely do not persist very long. However, depending on which cell type LNPs invaded, that persistence (of new Spikes creation) may differ by much, as per above.
Modified RNA encased in LNPs persist in the body for months, potentially years.
Skin cells live about thirty days, and liver cells die after about eighteen months. Brain and heart cells last a lifetime. The LNPs likely do not persist very long. However, depending on which cell type LNPs invaded, that persistence (of new Spikes creation) may differ by much, as per above.