I have questioned the Hep B vaccines for infants (I'm in Canada & I think it's Grade 6-7 here?) but I have a grandson born in US who was given Hep B vax at birth. I was a chemo nurse in Vancouver, BC in the mid 80's & had the 2 dose series then because I worked with a population that included drug addicts & gay men who were also drug addicts and prone to obscure cancers. It eventually changed to a 3 dose series which I received in Ontario (because my titre was low) & had to repeat one more time, after which I became labelled a "non responder". So, it's not necessarily a given that infants who receive Hep B shots at birth, or early on, will remain protected. I've known many people who've required boosters, and not a few more who became "non responders". I had measles as a young child and yet received the vaccine in kindergarten or Grade 1 (early 60's). I am not at all uninformed at all about vaccines (have given many) and their benefit, but Covid has caused me to question "received" science. It's sobering. (I declined the Covid vax due to, among other reasons, a very bad reaction to my one and only flu shot - and retired to avoid being fired. Got my first pension payment the day my employer fired all unvaccinated staff)