[Myrddin]

The problem with the measles vax is that the recipient develops a low grade infection and sheds active measles virus that can infect other persons who have not be vaccinated. The "immigrants" are a large population of unvaccinated persons who lack the "herd immunity" to keep newly vaccinated shedding from spreading. There was a report of measles in the San Diego area traced to newly vaccinated "immigrants" visiting local attractions. The strain of measles was examined and found to be from the vaccination.

The downside of American medical practice in vaccinating our own children is the vaccinations are given in a multiple disease dose. Often 5 doses mixed at a single vaccination event. This is a bad approach because each dose of vaccine is laced with an "adjuvant" to promote the immune system to work on the new antigen. The recipient is overdosed with too much adjuvant. That likely the cause behind the rise of autism induced by vaccinations.

[GenXPolymath]

Again if you and your kid is vaccinated already you have zero worry about shedding that’s why you take the MMR in the first place. It’s not rocket science , if you are not vaccinated to MMR you are the only ones at risk of getting it. Especially after boosters into adulthood.