Have you ever met anyone who had diphtheria? How about tetanus? You may know an older person who had polio as a child, and most people my age can remember measles and mumps, but how about congenital rubella? Hemophilus influenza meningitis? Smallpox?
As vaccines become more effective, and global vaccine campaigns more successful, fewer and fewer people (let alone their doctors) have any direct experience with the infections we vaccinate against.
That’s why vaccine-preventable infections can be a low priority for some young parents: They’ve never seen any of them. As one dad put it not long ago, when we got onto the subject of polio risks for his two month old daughter: “What’s the point of getting shots for non-existent diseases? It’s like you’re warning us about the dangers of buggy whips.”
That’s how my days go, sometimes…
I really like the illustration that accompanies this post (and thanks to my daughter Claire for sending it to me). The left hand column of red-tinged syringes shows how many cases of a given infection occurred each year in the pre-vaccine era. The mostly red-free column on the right lists the annual totals we see today.
The differences are dramatic, but it’s important to take note of the little slivers of red still visible next to infections like measles, mumps, and congenital rubella. These diseases and the others on the list aren’t extinct, they’re just held at bay by vaccines (and other public health improvements like clean drinking water and improved hygiene).
So keep this chart in mind when thinking about vaccinations for your child. Oh, and those bad old days? In the case of Hemophilus influenza, they weren’t so long ago: the vaccine didn’t come out until I’d been in practice for several years. I (and my patients) lived those 20,000 cases a year…