[The Lone Ranger]

Just in case it isn't clear: it's not at all unusual to be exposed to thousands of novel antigens. Per day. Studies of immunocompetence consistently indicate that even a very young child's immune system can cope with exposure to 100,000 novel antigens in a single day and function just fine. Easily.

A kid who goes outside and plays in the dirt will -- in just a few minutes' time -- be exposed to literally millions of different bacterial strains. And that's not even accounting for the countless different protozoan, fungal, and nematode species (s)he will be exposed to at the same time.

But a few dozen vaccinations over two years' time is going to stress the system? Don't make me laugh. Only someone who knows nothing at all about how immunity works would make such an idiotic claim.