Tag: COVID-19 vaccine

COVID-19 vaccination and screening mammography

Reports of enlarged lymph nodes under the arm after COVID-19 vaccination have led doctors to tweak mammography guidelines. Antivaxxers, unsurprisingly, have tried to weaponize this observation to spread fear and confusion about these vaccines.

/ March 22, 2021

Countering Geert Vanden Bossche’s dubious viral open letter warning against mass COVID-19 vaccination

Geert Vanden Bossche is a scientist who published an open letter warning of global catastrophe due to deadly variants of COVID-19 selected for by mass vaccination. His argument sounds a lot like an argument Andrew Wakefield once made for MMR. There’s even grift likely involved!

/ March 18, 2021

Oxford-AstraZeneca Vaccine Safety

Reports of blood clots after receiving the AstraZeneca COVID-19 vaccine are very likely just background events.

/ March 17, 2021
COVID-19 vs. FDA and CDC

State legislatures consider bills prohibiting COVID-19 vaccination mandates and other public health measures

Bills seek to prevent the states and private employers from mandating COVID-19 vaccines and other pandemic mitigation measures. Some proposed legislation would severely handicap public health officials in combating future health emergencies.

/ March 11, 2021

COVID Vaccines Probably Prevent Spread

The evidence is preliminary, but it looks like the COVID vaccines do reduce the risk of spread of SARS-CoV-2.

/ March 10, 2021
Central Dogma of Molecular Biology

Antivaxxers misrepresent a study to falsely claim that COVID-19 vaccines cause cancer

The latest antivaccine propaganda claims that a 2018 research paper published by researchers at Memorial Sloan-Kettering Cancer Center shows that the RNA in the Moderna and Pfizer COVID-19 vaccines can cause cancer. As usual, it's a complete misapplication of a cherry picked study grounded in a lack of understanding of molecular biology. Same as it ever was.

/ March 8, 2021

A “not antivaccine” antivax pediatrician asks how we will know a COVID-19 vaccine is safe and effective

Dr. Liz Mumper is associated with Robert F. Kennedy, Jr.'s antivax organization Children's Health Defense. She recently gave a presentation asking: How will we know that a COVID vaccine is safe? It's a presentation that provides an excellent example of how to identify if someone is antivaccine.

/ March 1, 2021
Prions and Creutzfeldt‐Jakob disease

Can mRNA-based COVID-19 vaccines cause prion disease or Alzheimer’s?

Antivax immunologist J. Bart Classen published a paper claiming that mRNA-based COVID-19 vaccines can cause prion disease leading to neurodegenerative diseases like Alzheimer's dementia. What are prions, and can these vaccines cause prion disease? (Spoiler alert: The answer to the second question is almost certainly no. It's speculation based on highly implausible biology.)

/ February 22, 2021
Pfizer/BioNTech COVID-19 vaccine

Lipid nanoparticles in COVID-19 vaccines: The new mercury to antivaxxers

When it comes to antivaccine misinformation and the COVID-19 pandemic, everything old is new again, at least if you haven't been paying attention. This time around, it's the resurrection of an old favorite antivaccine trope, the "toxins" gambit. Truly, lipid nanoparticles are the new mercury.

/ February 15, 2021
Central Dogma of Molecular Biology

The latest antivax false claim: mRNA vaccines against COVID-19 are not vaccines but “medical devices” or “gene therapy”

There's a new antivaccine talking point in town, and it's just as much disinformation as other antivaccine talking points. It's the claim that mRNA COVID-19 vaccines are not really vaccines but "medical devices," "gene therapy," or "experimental biologics" and that they were falsely classified as vaccines in order to bypass safety testing. Here, we discuss why this claim is utter nonsense based...

/ February 8, 2021