@Roonerspismed
But jeezo
baba that previous work didn’t involve proper full scale human trials did it? And even if it did, the AZ issue only cake to light well after 40,000 doses had been given
Perhaps this is my ignorance but if the body is being taught to respond to the spike protein via mRNA how do we know there aren’t longer lasting implications of this? I appreciate you asked your consultant but yes doesn’t know any more than the rest of us - the longer term studies simply aren’t there.
No, but the initial trials before vaccine roll out consisted of 44,000 people, which is a vastly superior sample size to most drug trials- we would thank our lucky stars to get clinical like that! No drug you take OTC or otherwise will have had that accurate a data analysis.
And the consultant does know exactly what the interactions between the mRNA and the immune system entail. As stated above, there aren't any longer lasting implications of stored immunity, except that your body can recognise and destroy a pathogen quicker.
I'm not quite sure you're grasping the mechanism quite right, but essentially, mRNA is like the working construction leaflet for protein synthesis. Our cells rely on proteins and they are the fundamentals to life. Normally, as indicated by the central dogma of biology, mRNA is made from DNA, then is translated into a protein. In this case, the mRNA isn't transcribed from our DNA, but injected, so our cells start making the protein that mRNA codes for, just as it would when the virus enters our cells (coronaviruses are positive sense, single strand, essentially just RNA in a neat little phospholipid envelope). When this protein is made, our cells display the protein as an antigen on the surface. This makes them look like the virus. Our immune system recognises the foreign antigens (all your cells have antigens, just ones that "look like yours") and creates antibodies to bind to the antigens, facilitating the rest of the immune response (Memory B cells, TFH cells, etc). The latter is exactly the same as would happen in any other instance of infection, your body doesn't know it is artificial, so it is completely natural, just like your stored immunity to every other pathogen you have encountered.
This is how we know it is safe, and the extra clever bit is that the mRNA injected is just the bit that codes for the intrinsic cell-surface protein, not any of the other nasty bits of viral RNA that cause symptoms and rampant infections, literally just the harmless coding region for a protein that your body then makes itself.
It's quite difficult to explain without getting very technical, and I've studied it so long I can hardly remember what is intuitive/common knowledge and what is not, so apologies if I've not done a good job, but I can once again assure you that every potential issue you, a layman, spot, an accredited expert has studied it tenfold and passed it from concerns. We have no scope for mistakes and are absolutely fastidious in having everything ironed out repeatedly, by difference teams, in different fields. It's just not one of those things where Joe Bloggs sees an oversight a scientist has missed, ever.