Interesting, I feel the exact opposite. I can't wait to take a mRNA vaccine, but the adenovirus ones seem sketchy given that Sinovac, J&J, and AstraZeneca have all seen serious adverse events in their trials, while Pfizer and Moderna have seen none, along with much higher efficacy.
I wasn't aware there were any adenoviral vaccinations approved for human use? What are you referring to?
Yes, I do have some concerns regarding long term effects of mRNA based vaccines. As you said, I would also like to see some deeper thinking about this. I feel that other delivery vectors may be better known and have an existing track record.
I also understand that mRNA treatments have had some excellent outcomes in cancer patients. However, these treatments have been highly personalised, based on the patient's own DNA. Therefore, I also wonder about the general medium and longer term effectiveness of mRNA for coronavirus vaccination.
I'm in no way an anti-vaxer. I'm completely vaccinated for all the common things (MMR etc). As is my child. No problems with something that's been around for a long time and is well known.
I would just like to make my own choice regarding which brand new, accelerated testing regime, vaccine I decide to inject.
One interesting thing is that I was quite worried that in April/May all these experimental treatments have been stopped, because all the most interesting companies were forced to redirect their focus to COVID (the only reason you could use a lab). I'm relieved, that at least we got something in return: derisking mRNA as a delivery method, and showing that it's far superior to older ones. You're right that we don't have medium / long term data yet, but this article is quite relevant:
https://www.jpost.com/health-science/could-an-mrna-vaccine-b...
Linial explained that “mRNA is a very fragile molecule, meaning it can be destroyed very easily... If you put mRNA on the table, for example, in a minute there will not be any mRNA leftover. This is as opposed to DNA, which is as stable as you get.” She said that this fragility is true of the mRNA of any living thing, whether it belongs to a plant, bacteria, virus or human. As such, she said the worry should not be that the mRNA won’t get into the cells and instead will stay outside, floating in the body and causing some kind of reaction. Rather the concern should be that if it doesn’t enter the cells, it will disintegrate and therefore be ineffective.
Indeed! And I'll be going with the adenoviral route which has been used for more than fifty years, rather than the brand new, first time ever mRNA product.