At least one of the studies that was cited by the Centers for Disease Control and Prevention (CDC) to justify changing their guidance on masks was based on a vaccine that is not authorized for use in America and was rejected by a peer review.
The study in question from researchers in India analyzed vaccine breakthrough in over 100 healthcare workers and claims to show that a COVID-19 Delta variant infection generates a higher viral load in comparison to other variants.
Despite no mention in the study of viral loads from the variant against unvaccinated individuals, the CDC cited it in yesterday’s updated brief as evidence that the Delta variant is transmissible from a vaccinated individual with a breakthrough infection.
“Studies from India with vaccines not authorized for use in the United States have noted relatively high viral loads and larger cluster sizes associated with infections with Delta, regardless of vaccination status,” the CDC said.
“These early data suggest that breakthrough Delta infections are transmissible,” the CDC’s brief goes on to say, even though the India study was conducted with a non-approved U.S. vaccine.