“Just because you need a third dose doesn’t mean the two dose schedule is having issues or anything”
Filed under: CDC Watch, News, Opinion, Parents' Pages, Vaccine/Disease Analysis
Because of continued spread, health authorities working with communities in Orange County are giving schoolchildren a third dose of the MMR vaccine. Gallagher says it will be two or three months before it’s known whether the effort succeeded.
Why do they need a third dose?
The infections happened despite high coverage with the measles-mumps-rubella (MMR) vaccine. Among patients ages 7 to 18 — the age group that had the most cases — 85% of patients had received the two recommended MMR vaccine doses.
This doesn’t mean the MMR vaccine isn’t working, says epidemiologist Kathleen Gallagher, DSc, MPH, the CDC’s team leader for measles, mumps, and rubella.
“Two doses of mumps vaccine is believed to be 90% to 95% effective,” Gallagher tells WebMD. “But that means people can still get mumps. If the vaccine is 90% effective and 100 people are exposed to mumps, 10 will get the disease.”
If we imagine that mumps is being sprinkled from the sky and spread evenly throughout the population, then yes, one out of ten vaccinated people would catch mumps if the vaccine was, indeed, 90% effective, or one out of twenty if it were 95% effective. But if the vaccine creates “herd immunity” then the disease shouldn’t be able to jump from vaccinated person to vaccinated person to vaccinated person. Read more
Vaccines? Safe. Parents? Dangerous.
Lately I’ve been noticing an increasing number of journal articles, blog articles and opinion pieces on a terrible problem: Parents have questions about vaccines.
You would have to look far and wide to find anyone who thinks that these questions are valid and should be taken seriously. Common explanations are:
1) It is all about the parents who think they are really smart.
2) It is all about the parents who are very stupid and read stuff on the Internet.
3) It is all about the bad stuff on the Internet which is deceiving the parents who aren’t very smart and who think they are smarter than doctors. And infinite variations on this theme, which is really one argument…and the real argument is (drum roll)…vaccines are perfect and parents are the problem.
Being called stupid dupes hasn’t worked to shut up the parents with questions. Perhaps this is not a good strategy?
I’m sure you’ve noticed that many articles and blogs offer comment options to the public. If you are following the vaccine related discussions you’ll have noticed that there is a coterie of passionate vaccine defenders who pop up in every such public discussion. These vaccine defenders are fighting for the good of the vaccine program with everything they’ve got.
Oddly, however, the number of parents with questions seems to be increasing. Perhaps the vaccine defenders need to reconsider their approach. Read more