What happens when you don’t get vaccinated

My two vaccinated children, on the other hand, have rarely been ill, have had antibiotics maybe twice in their lives, if that. Not like their mum. I got so many illnesses requiring treatment with antibiotics that I developed a resistance to them, which led me to be hospitalized with penicillin-resistant quinsy at age 21 – you know, that old-fashioned disease that supposedly killed Queen Elizabeth I and that was almost wiped out through use of antibiotics.

I realize that this is just one person, and should not be treated as a anything more than anecdote, but this is not what the anti-vac people say happens to an immune system with and without vaccines. They insist that people who are not vaccinated will develop a healthy immune system via some natural process. Modern medicine disagrees, and so does her experience.