So, you’ve rolled up your sleeve, gotten your measles vaccine, and now you’re curious about that pesky test result that shows a negative titer? Don’t worry, you’re not alone. Understanding this phenomenon isn’t just for the science buffs: it’s essential for everyone who wants to stay healthy. Let’s break it down with a sprinkle of humor and a dollop of clarity because, let’s face it, nobody wants to be puzzled by medical jargon when it comes to something as crucial as vaccinations.