Short answer: very, very rare. Longer answer: not as rare as we'd like.
When a malnourished child receives an oral polio vaccine, it is possible for that weakened vaccine to mutate and take hold.
So this year's influenza recommendations are out, with a couple of surprises. First, everyone should get one, BUT kids under two should NOT get the live version. Nor should anyone over 49. I'm not sure why a fifty-year-old is suddenly less immune, but that's the guideline. "The recommendations note that a statistically significant decrease in antibody …
I think it is much less effective than its presentation, because healthy individuals are not at high risk for shingles. I also have concerns about side-effects and long-term protection.
What is not likely to be a factor is lack of vaccination. Almost all the children had been vaccinated, it just wore off or wasn't effective.
Vaccination can be life saving, especially in populations where malnourishment is common. But we should not try to explain absolutely predictable periodic outbreaks of disease as being due entirely to parental resistance.
In the news, crazy vaccine resisting Muslims are killing their children with Polio. Oops, nobody died, but they make it sound like they are from all this resisting. Oh, except back in 2007 the Nigerian epidemic was " a rare outbreak of a vaccine-derived form of polio in northern Nigeria
We've also chosen not to vaccinate for tuberculosis because we'd rather monitor that disease's progression in our immigrant populations. So when individual parents have concerns about side effects, it doesn't work to "just say no."
it's expensive, and shingles isn't that common. Still, if it does happen it would be extremely painful. And there's that post-neuralgia thing. Yeah, the vaccine didn't seem to help with that.
If you were exposed and already had H1N1 like we were, chances are you already have antibodies. At this point even 25% of house cats have been exposed.