Vaccines Remain Largely Effective Against Delta Variant, Counter to Claims From Fox News Guest - FactCheck.orghttps://www.factcheck.org/2021/07/vaccines-remain-largely-effective-against-delta-variant-counter-to-claims-from-fox-news-guest/Multiple studies show the FDA-authorized COVID-19 vaccines continue to be effective against the delta variant of the coronavirus, even if the potency of the vaccines is somewhat reduced. But a guest o