What worries me is that plenty of vaccinated people get it, their symptoms are less so they will probably never get diagnosed. Thus, they're very likely to spread the illness to little babies, where it's the most harmful. It's hard enough to get diagnosed when you have strong symptoms, much less if it acts like a mild cold. Olivine has had it for nearly a month now and while it is a bad cough, she's totally fine the rest of the time. It's really not that serious is most healthy people, only in young babies who aren't/can't be vaccinated yet.
I agree, Amanda- the efficacy numbers don't sound low to me. That sounds pretty good, actually. From Abra's source- it says that "pertussis will develop in 90% of unvaccinated children living with someone with pertussis, and in 50% to 80% of unvaccinated children who attend school or daycare with someone with pertussis." A 50-80% chance of developing the disease if exposed sounds high. Coincidentally, the vaccine is 59-89% effective, which is a similar range (higher, actually). Still sounds like a high percentage- I think it's all in how it is framed. And the vax reduces the severity of the symptoms- for a disease that can last 6 weeks or longer, I think that is really great.
That is just my opinion from looking at the scientific data. Obviously there are other unquantifiable factors like instincts and motherly intuition, issues with the vax ingredients, etc. I am not saying that non-vaxing isn't a valid choice, just offering my perspective. I feel completely comfortable with my decision to vax both of my kids, and especially so considering that pertussis is going around. It may not be "that bad" but I certainly don't want to have a sick kid for weeks on end. Again, that is just me. Just wanted to offer my side of it since I seem to be in the minority on MDC.