The vaccines approved or authorized for use in the U.S. against COVID-19 are safe and effective, as we’ve reported. (See SciCheck’s articles on those vaccines: “A Guide to Moderna’s COVID-19 Vaccine,“ “A Guide to Pfizer/BioNTech’s COVID-19 Vaccine” and “A Guide to Johnson & Johnson’s COVID-19 Vaccine.”) For years, however, vaccine opponents have promoted the unfounded claim that vaccines introduce toxins […]
