Cough. Cough. Cough. Puke.
My son contracted pertussis when he was about 6. He'd been immunized, but none-the-less, he got whooping cough. It took a terrible toll on him. He would cough to the point that he could no longer breath, and then he would vomit; gut wrenching contractions of his stomach. Things would calm down for a while, sometimes just a few minutes, then it would start again. He wasn't hospitalized, and eventually made a full recovery.
My point is, we sometimes lose sight of how awful some of the things we get vaccinated for actually are. They seem benign, as we are used to the words that portray them. However, once you've seen them up close, they're terrifying. Watching your kid struggle to breathe is something I'll never forget. Cough. Cough. Cough. Puke. Repeat.
Will it take outbreaks to get people back to believing in vaccinations? I hope not. That's what this site is for.
(Medical note from the IBI team: The effectiveness of the pertussis vaccine after the primary series is estimated to be about 85%, and approximately 90% following booster immunization. Because protection fades over time, some children who get vaccinated may still get pertussis. Those who do get the vaccine and still get pertussis have less serious disease and are less likely to suffer from disease complications.)