You should consider what might happen in the future, say 20-25 years from now….
Let`s say they determine that the measles morphed into something deadly, and all those carrying the virus have to be quarantined…
They would check for antibodies to do this…and guess what…you never had measles, but you carry the antibodies because of the vaccine…off to the FEMA camp you go..and you end up with all those that really have the deadly virus