@RedcurrantPuff
The AZ vaccine is not experimental gene therapy
Yes - and none of them are "experimental gene therapy". Can't find the original comment from
@wildswim but will absolutely correct it!
Firstly, "experimental" - the vaccines are approved for use in adults. Children will only be offered vaccination once clinical trials have taken place to test the safety profile in under 16s/under 18s.
Secondly, they are not gene therapy. Moderna currently uses this classification (as it is a vaccine made of nucleic acid) due to outdated legislation - Pfizer doesn't and AZ doesn't. Pfizer and Moderna use exactly the same mechanism but are labelled differently.
Gene therapy involves changing someone's genetic material to try and ease symptoms of a genetic disease. It's risky and has a large profile of side effects, largely due to that fact that it is difficult to control where the new piece of DNA integrates into the person's DNA. If it happens to interrupt an important gene, this can lead to things like cancer. In the context of treating nasty genetic diseases like cystic fibrosis, SCID or muscular dystrophy, this risk is justified, but in the case of developing a vaccine for the general population it would be insane.
An mRNA vaccine is not capable of altering your genetic material - it goes nowhere near your DNA. All it does is borrow your ribosomes (the cell organelle where proteins are made), to translate the code for spike proteins into actual spike proteins so your immune system can mount a response.
Full rationale of why an mRNA vaccine can't alter your DNA (backed up by 100s of years of research into genetics & viruses - cell, animal and human data):
- mRNA doesn't go anywhere near the nucleus, which is where your DNA is kept
- Even if it could, your cells aren't able to convert mRNA to DNA
- Even if they could, your cells don't have the enzyme required to integrate new pieces of DNA into your DNA
This is an area I have a fair of background in so super happy to try and answer questions if anyone is interested or wants to know more!
And I've started adding this into all my posts - no one should have to have a vaccine if they don't want to, for whatever reason. But equally, no one should be coerced or scared into not taking it up because of scientific misinformation.