Measles Outbreak: Which Came First, the Chicken or the Egg?

Regarding the current outbreak of measles in pockets of the country:  I have to wonder, which came first, the chicken or the egg?

That is to say, that perhaps the rush to admonish parents for opting out of vaccinations for their children conveniently (purposefully?) overlooks a more meaningful truth, that truth being the source of origination for the latest "outbreak" of this disease.

Doesn't it strike you as odd that measles was largely under control if not 'eradicated' here within the continental borders of the USA and now suddenly we have a measles outbreak spanning several states?  So what has recently changed that would account for the outbreaks we are now seeing around the country?  Parents of both political persuasions in the United States have been opting out of vaccinations for their children since the "autism scares", in the late 90's, and we haven't seen any "outbreak" until just recently.  So what's changed?  Could it be this disease has newly introduced carriers in the form of a large scale influx of non-immunized illegal immigrants --many among these being children now attending public schools across the nation-- who have been haphazardly 'processed' into our system --but not vaccinated-- and then unleashed upon our communities?  And measles may just be the first of many diseases "outbreaks" to be unleashed upon the nation.  What about the mysterious rodent virus that was killing humans --in large numbers--south of the border, a few years back.  To the best of my knowledge there is no vaccination for that virus. Maybe that's why we have immigration laws and a process for legal immigration in the first place?


Granted the science surrounding vaccinations has been more thoroughly investigated over the past decade and most now agree vaccinations are safe to administer --though, as a parent, I would still choose to space out the vaccinations, over a matter of months, and not bombard tiny immune systems all at once with multiple diseases-- such that parents who have not had their children vaccinated should now seriously consider having their children vaccinated for the more serious diseases, especially in light of the myriad of issues surrounding lax enforcement of our nation's immigration policy under the current administration.