And here we go again with more anti-vaccine nonsense from Del Bigtree‘s Informed Consent Action Network (ICAN) – this time it’s about Merck’s VARIVAX chickenpox vaccine. And, of course, there’s nothing that they present that is accurate or worrisome.
VARIVAX is a well-studied vaccine that is both demonstrably safe and demonstrably effective. However, Bigtree and ICAN always think they have some amazing catch that shows that vaccines are bad. And they are never right, so that’s why we have to spend time taking it down.
Let’s see what they have to say, but first a little bit about chickenpox. Continue reading “VARIVAX chickenpox vaccine – newest target of the anti-vaccine ICAN”
Shingles, a reactivated form of the chickenpox virus, is a painful rash that afflicts many people decades after the initial chickenpox infection. Now, we have data that shingles increase heart attacks (myocardial infarction) and strokes. This is more evidence that we need to end chickenpox with the chickenpox vaccine, and reduce the risk of shingles in those who have had chickenpox with the shingles vaccine.
Let’s take a look at shingles and this new study. Continue reading “Shingles increase heart attacks – time for the vaccine”
Anti-vaccine activists tend to grab onto any story that supports their narratives about vaccines. Generally, they comb the internet for any article that either tells us that vaccines don’t work, that they’re dangerous, or that the disease prevented is innocuous. It’s a frustrating process. Recently, an article was published that seemed to indicate chickenpox prevents glioma, a rare group of cancers that arise in the brain or spine. Then, by extension, some have claimed that not being vaccinated against chickenpox helps prevent glioma.
But is this valid? What does the evidence say about chickenpox and glioma? Is it even plausible that chickenpox has some biological relationship to glioma?
As always, answers aren’t as simple as the anti-vaccine group would like them to be. It’s complicated, as most science is.
Continue reading “Chickenpox prevents glioma – not a reason to avoid the vaccine”