Was the Measles Outbreak in Michigan Caused by Vaccine-Strain Measles?

Anti-vaccine folks are pushing some new misinformation about measles outbreaks.

Was the Measles Outbreak in Michigan Caused by Vaccine-Strain Measles?

What is it this time?

The Michigan measles outbreak was not caused by a vaccine strain of measles.
The Michigan measles outbreak was not caused by a vaccine strain of measles.

Vaccine-strain measles?

Causing an outbreak?!?

Since a vaccine-strain has never triggered an outbreak before, you would think these folks would be a little more skeptical about this “news.”

So what’s the real story?

“The Michigan Department of Health and Human Services (MDHHS) is reducing the statewide count of measles for 2019 to 39 following further testing of two of the cases.”

State measles cases reduced to 39 following additional testing

So there is a hint of truth to their new rumor…

“One child in Washtenaw County had been potentially exposed to measles and that child, along with an Oakland County child, had both been recently vaccinated. Their symptoms and initial test results classified them as measles cases. Per the Centers for Disease Control and Prevention (CDC) protocol, additional genotype testing was conducted and determined they were not measles cases. “

State measles cases reduced to 39 following additional testing

On further testing though, they didn’t have wild strain measles. They had a vaccine strain – because they had recently been vaccinated.

These two kids likely had a fever and rash and because they had recently been exposed to measles, it was initially assumed that they had measles. That was likely a safe bet in the middle of a large measles outbreak.

But as often seems to happen, anti-vaccine folks get confused by vaccine reactions and vaccine associated measles.

So they didn’t have measles induced by the vaccine. They had a simple vaccine reaction, with a fever and rash.

What’s the difference? All of the other symptoms of measles!

The Southeast Michigan outbreak, which included 44 cases, began in mid-March.
The Southeast Michigan outbreak, which included 44 cases, began in mid-March.

As ridiculous as it is to have to say this, the Michigan measles outbreak was not canceled. And like other outbreaks, the Michigan measles outbreak was not caused by a vaccine or shedding.

More on the Michigan Measles Outbreak

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