Let’s talk about measles. Not compelling? Not convinced? Go to news.google.com and search for “measles.” You’ll get news reports about infections that official data shows are coming at a faster clip than in recent years – as well as word of the first death from the disease since 2015.

With the elevated risk of contracting measles, some people are now wondering if their vaccines are working to protect them from this contagious virus -- or if they need another vaccination on top of the shots they may have already gotten.