Maybe this would be a helpful explanation mate. Was listening to an immunology post cast yesterday it said that the immunity-waning of the vaccines being reported in the media is absolute immunity. This is the efficacy number that is driven by antibodies that stop you from getting an infection in the first place. In the the podcast the American immunologists propose vaccines were always going to wane over time due to the nature of antibodies, that you won’t keep huge numbers of antibodies in your system for years after you have an infection or a vaccine and that it is perfectly normal for them to wane.
What you will have afterward, and is backed up by the brilliant explanatory video
@LinekersLegs posted, is cellular defenses that will now respond within 2 days of seeing the virus again. Without the vaccine its 9-10 days which your body takes when it sees a brand new virus. This is the protection that should help to keep people out of hospital unless you get a very high viral load or you have one of the many underlying conditions that mean you are vulnerable, but of course not a silver bullet, so other mitigation measures like masks, distancing, passes etc are useful in terms of reducing exposure and minimizing viral load.
In a way the media arent helping on their reporting on the reduction of waning immunity the right information should be the public domain to make an informed decision.
I posted some data during the week from Israel that was really good and the best ive seen so far on protection on waning efficacy/protection across age groups between 1, 2, 3, doses:
All that said if you have an opportunity to get a booster, its an absolute no brainier to get it, it essentially turbo boosts and tops up your antibody levels, we're in a very lucky position to have the opportunity to have vaccines in the western world never mind the opportunity to have a booster, there is a huge argument to made that we shouldn't be having boosters at all and the vaccines should be redirected to the developing world.. I got mine myself during the week and id be in the under younger cohort, zero inconvenience. Heres a small sample from the UK on the roll out of boosters so far and how they boost antibody levels figures are for over 70s in the UK, great evidence as to why its a no brainier to get your booster, especially over flu season: