Thank you for clarifying what we are talking about. I mostly focus on the childhood vax schedule, but I think you are also kind of making my point.

How does it make sense to wipe out your microbiome balance to the point of opportunistic infections as a preventative for pneumonia? The complexity of the hypersymbiosis of the microbiome should not be taken lightly.

Even if efficacy is proven, is the safety?

Do you have safety studies that have guided your opinion? The long-term, double-blind, placebo-controlled RCTs?

I am happy to change my mind if there is legit science behind it.