Responding to rising mpox cases in Africa, the World Health Organization declared a public health emergency of international concern on Aug. 14. Social media posts subsequently repeated a plethora of false or baseless claims, including that COVID-19 vaccines cause the viral disease or that the current outbreak is part of a global conspiracy.
Small amounts of aluminum have been used for many decades to strengthen the immune response to vaccines. Exposure to high levels of aluminum has been associated with brain and bone problems, but there is no evidence that the level of exposure provided by vaccines leads to such toxicity, contrary to social media claims.
The mRNA COVID-19 vaccines — like many other vaccines — can contain small amounts of DNA left over from the manufacturing process. There’s no evidence this residual DNA causes “turbo cancer,” or very aggressive cancer. Nor did Moderna admit that “mRNA Jabs Cause Turbo-Cancer,” contrary to an online article that misconstrues a line from a patent application.
Small amounts of DNA from the manufacturing process may remain in the mRNA COVID-19 vaccines. Purification and quality control steps ensure any leftover DNA is present within regulatory limits. There isn’t reason to think that this residual DNA would alter a person’s DNA or cause cancer, contrary to claims made online.
COVID-19 vaccines don’t contain microchips and have readily available ingredient lists. But social media posts use an old clip of the Pfizer CEO talking about an “electronic pill” for schizophrenia to leave the false impression he was confirming a conspiracy theory about microchips in the vaccines.
With the release of its pediatric COVID-19 vaccine, Pfizer switched the buffer used in its formulation to increase the stability of the product, allowing it to remain at refrigerator temperatures for longer. The Food and Drug Administration OK’d the change, which is also being made to some doses for teens and adults. Social media posts, however, misleadingly suggest that the ingredient swap is dangerous or was added to prevent heart attacks in children.
A list of the ingredients used in COVID-19 vaccines is publicly available, and the ingredients don’t include microchips. Yet claims advancing conspiracy theories that they do continue to flourish. A recent video purports to show a microchip reader for pets detecting a chip in a vaccinated person’s arm — but the original video was created as a joke.
The COVID-19 vaccine from Moderna uses an ingredient called SM-102 to deliver the mRNA that carries instructions for how to develop antibodies against the novel coronavirus. A widely shared video is now spreading the falsehood that SM-102 is harmful, but the warning label it shows is for chloroform, not SM-102.
The ingredients in the COVID-19 vaccines authorized for use in the U.S. are publicly available. Yet a false claim that the vaccines contain microchips is receiving renewed attention through a spate of videos of people claiming that magnets stick to their arms after vaccination. Experts say none of the ingredients would cause this supposed effect.
The full ingredient list for any authorized or approved COVID-19 vaccine can be found on the Centers for Disease Control and Prevention website and in a variety of documents on the Food and Drug Administration’s website, including in a fact sheet for vaccine recipients that’s available in numerous languages.
Both the Pfizer/BioNTech and Moderna vaccines contain messenger RNA,