re: New baby on the way - Whooping Cough vaccine

quote:

---

If something is injected into the bloodstream directly vs being first digested, it certainly has an easier route to the brain.

---

like the polio virus itself?

quote:

---

If something is injected into the bloodstream directly vs being first digested, it certainly has an easier route to the brain.

---

But you need certain molecular characteristics to pass the blood-brain barrier. You seem hellbent on repeating a nonsensical point for some reason. Why? A shot in the arm isn't going to go directly into the brain or the blood. It is going to be mediated by the immune system through dendritic cells and macrophages, as the injections are intramuscular, not intravenous. Again, the key point is that the injections are intramuscular. Understand this before you reply.