FactCheck.org’s SciCheck feature focuses exclusively on false and misleading scientific claims that are made by partisans to influence public policy. It was launched in January 2015 with a grant from the Stanton Foundation. The foundation was founded by the late Frank Stanton, president of CBS for 25 years, from 1946 to 1971.
Experts agree mammograms are the best tool to screen for breast cancer and that the benefits of the exam outweigh the risks. But a video in Spanish recommended that women over 40 skip mammograms, claiming the test is “unsafe” and “unnecessary.”
As with many medical products, the mRNA COVID-19 vaccines may contain trace amounts of residual DNA from the manufacturing process. It is not considered adulteration, and the Food and Drug Administration is not “required” to pull the vaccines from the market, contrary to viral claims online.
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.
An injection of vitamin K for babies has been recommended and used safely for more than 60 years. It prevents life-threatening bleeding in newborns. But a viral post incorrectly claims the shot is harmful and unnecessary.
Inhalable or spray versions of mRNA COVID-19 vaccines are still in development and don’t have regulatory approval. Posts online are distorting recent research from Yale University to falsely claim that governments have approved such products to mass vaccinate people without their consent in a plot involving Bill Gates.
Influenza vaccines contain small amounts of various ingredients that allow them to work and keep them safe and long-lasting. A misleading meme suggestively lists more than two dozen substances it claims are in flu vaccines. But most are not present — and the ones that are aren’t dangerous.
Some research indicates possible negative effects from aspartame, but there’s no definitive evidence linking it to health problems in the general population. Aspartame is safe when consumed within certain limits, according to the U.S. Food and Drug Administration. The daily limit is above the amount people typically ingest.
Hearst Television, one of our media partners, produced this segment of “Get the Facts” partly based on our Q&A article on the updated COVID-19 vaccines.
Serious side effects after COVID-19 vaccination are rare, and there isn’t evidence people need to undergo a “spike protein detoxification” regimen after getting vaccinated, contrary to claims made online. Nor has such a regimen been shown to help people recover from long COVID, or long-term health problems after having COVID-19.
Flu shots and vaccines that protect children against measles, mumps and rubella have been effective in preventing illness, serious disease and death. But a meme has been circulating with the false suggestion that those vaccines are ineffective. Actually, they’ve saved millions of lives and have eliminated both measles and rubella in the U.S.