Why do some people think that 38% of the Disneyland measles cases were caused by a vaccine strain of measles?
Maybe because anti-vaccine folks have been pushing this propaganda for years now…
Were 38% of the Disneyland Measles Cases a Vaccine Strain?
Jim Meehan wasn’t the first to make the claim.
And it has been repeated over and over again.
And not just about California.
Larry Palevsky seems to think that the big outbreaks in New York could have just been folks with vaccine-strain measles…
“All measles cases this year have been caused by measles wild-type D8 or B3.”CDC on Measles Cases in 2019
Of course, none of this is true.
There were no vaccine strain measles cases in the Disneyland outbreak!
What the California Department of Public Health reported were recently vaccinated persons who developed a febrile rash, which is a common side effect of the MMR vaccine. They were tested because they were in the middle of a measles outbreak and they wanted to make sure that these folks didn’t have measles. And they didn’t.
A few studies even describe the methods they used.
“Here, we describe a real-time reverse transcription-PCR (RT-PCR) method that detects the vaccine genotype (MeVA RT-quantitative PCR [RT-qPCR]) and that can provide rapid discrimination between wild-type-virus infections and vaccine reactions.”Roy et al on Rapid Identification of Measles Virus Vaccine Genotype by Real-Time PCR
Again, the “vaccine reaction” is not that they developed measles! They developed a rash and/or fever, a common side effect of the MMR vaccine.
So how do we know that most cases in other outbreaks aren’t recently vaccinated persons with a febrile rash illness?
“During outbreaks, measles vaccine is administered to help control the outbreak, and in these situations, vaccine reactions may be mistakenly classified as measles cases.”CDC on Genetic Analysis of Measles Viruses
Well for one thing, most of the cases are in folks who aren’t vaccinated!
And measles symptoms are much more severe than the few days of fever and rash that you might get after being vaccinated.
But if necessary, testing can be done to see if it is a vaccine strain and to see if they don’t actually have measles.
And can everyone now stop saying that that 38% of the Disneyland measles cases were caused by a vaccine strain of measles?
There were no vaccine strain measles cases in the Disneyland outbreak.
More on Measles Strains in Outbreaks
- Choose to Stop Spreading Anti-Vaccine Propaganda
- More Questions to Help You Become a Vaccine Skeptic
- Why Are You Still Worried About the MMR Vaccine?
- Is a Vaccine Strain Causing The Latest Measles Outbreak?
- About Those Vaccine Strains in Measles Outbreaks…
- Can MMR Shedding Start a Measles Outbreak?
- Was the Measles Outbreak in Michigan Caused by Vaccine-Strain Measles?
- Who Is ‘Patient Zero’ in the 2019 Measles Outbreaks?
- Why Is Lying About Vaccines Not Criminal?
- Study – Rapid Identification of Measles VirusVaccine Genotype by Real-Time PCR