No, I wasn't specifically talking about repeated infections. I was talking more about lifestyle changes, exercise routines, a healthy diet etc.
Yes, natural immunity and exposing your immune system are highly important too. But, certainly not 'the only way to build up a healthy immune system'.
Whether or not somebody has had a vaccine is their own business.
I disagree.....it's everybody's business, because it's everybody's health that's at risk.
The reality is that there's always a tipping point of enough people who have been vaccinated vs those who haven't, to make an enormous difference in the efficacy of eradicating the disease. Smallpox was a success, polio
was on it's way to being one.
Healthy living didn't stop flu killing millions in the early 20th century, indeed it was noted that it mostly took the young fit and healthy.
Healthy living while an admirable thing, doesn't stop someone getting infected, and then it's a very individual thing whether you just thole it until the body kills it off, or it kills you.
Meanwhile the more people who are infected and pass that along, just helps the blasted virus mutate.
All a vaccine does is give the body a heads up, a fighting start, so long as the vaccine is appropriate.
Repeated infections of one kind or another help keep the immune system active, again, that head start.
We finally relaxed after the last round of vaccinations (Son2 is immune compromised from lymphatic cancer, he's cured, but the scars from dozens of tumours leave his system impaired and sluggish despite a truly healthy lifestyle) before Hallowe'en time. I shopped, and had lunch out with friends. In three weeks I had three different colds and coughs. No covid-19 or flu though, thankfully.
I haven't had a cold or cough since despite being out and about through the Christmas crowds. Pretty sure it was my immune system getting a good 'heads up'.