milly wrote: ↑17 Jan 2021, 14:33
I believe that you can't with adenovirus vectored Vaccines (Oxford/AstraZeneca) you can only use them twice, initial plus booster.
If you were to use up your two goes with the adenovirus and scientists were to develop a treatment in the future for say Cancer then that treatment wouldn't be available to you as your body would have developed resistance to the adenovirus.
You're doing your half-assed research thing again.
1. One of the drawbacks of this type of vaccine is that having pre-existing immunity against adenovirus can reduce vaccine efficacy.
However this drawback can be subsided by using less prevalent serotypes, such as human adenovirus serotype 35.
2. As with any virus immunity to adenovirus reduces over time so you could still in theory use the same serotype.
3. In humans, more than 50 distinct adenoviral serotype have been found. In other mammals hundreds.
4. It doesn't even need to be adenovirus that's used as a vector, it's just a very stable vector that's had a great deal of research done on it, in the future we might find something even more suitable, certainly more likely than a cancer magic bullet any time soon.