Inoculate yourself against the confusion and misinformation surrounding vaccines Measles, mumps, and rubella—oh my! Why are we vaccinating our children—and ourselves—against these diseases, and what goes on in our bodies after the needle comes out? Vaccines For Dummies will inform and entertain you about all things vax, including how the first vaccines were discovered, what’s in modern vaccines, how they are tested and approved for use, and why the CDC’s vaccine schedule is what it is.