So, when I got my flu shot last night I asked about getting a pneumonia shot as well.
I'd been given my first one a year ago and they told me I have to know which one it was, because there are two. You get one, then you wait a year, and then you get the other one. And then theoretically, for most people, you don't get any more. I didn't remember ever hearing that, but I just checked with the doctor's office and they confirmed it and told me which one I'd gotten. So I'll head back over to Walgreen's probably tomorrow and get that second one.