I have been vaccinated three times for the Measels. And I had them. So, I’m pretty sure I am covered.
After I had the measels as a 4 year old, I got the vaccine in school (because in 1969, everyone did). Then I got it again when I joined the Army because they didn’t believe me that i was once a child and got normal childhood diseases and vaccinations to attend public schools. Then I got it again when I was recalled into the Army because I couldn’t prove I had it the first time I was in the Army since the Army wouldn’t trust the Army to do something as routine as keeping accurate shot records or performing a policy like vaccinating everyone who walks in the door.