I noticed that too. First it was ‘Get yer Flu Shot, right over here!” So many did just that, too many. Problem is flu shots can remain effective for a long time, how is a chemical industry supposed to make money like that? The solution, as they see it, is to strongly suggest constant ‘tweeking’ and updates of your present vaccines. I used to hear their have been household suitable light bulbs that last for decades. Investors are usually not interested in supporting a virtual ‘one time use’ product.
flu shots are not effective for a long time. The flu virus mutates and a new vaccine is required for protection. Measles should be boosted as well, as is done in jr hi right now. If there is a large outbreak, we may find out adults need a booster as well. I’m not excited to find out the vaccinations are not effective over age 50... (although I’m old enough I had the measles, so don’t have to worry)
With some diseases, the most permanent immunity comes from actually getting sick with say measles, and recovering.
I think all kids should (and the vast majority do) get vaccinated for the big 3 but anybody who needs a new vaccine every year for the rest of their life has something seriously wrong with them.
I suspect you would find that those of us who don’t run out for the newest fashionable vaccines every year tend to be healthier. I got the recent flu and survived it but I only get the flu about once every ten years.
The real concern will come in a generation or two when the whole population has been overvaccinated.
Flu shots are a bad example. The influenza virus mutates constantly, and there are actually multiple strains at any given time. A flu shot has 3-4 strains each year, which are chosen around February. Then, those strains are grown, so the shots are available in the fall.
The choice of strains are a gamble -- you can't be sure which ones will be widespread in the fall. This year, they didn't choose all the right ones, and I think the shot only immunized against one strain that is widespread.