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Pfizer vaccine and Delta variant, studies show not as effective
Pfizer vaccine effectiveness falls as Delta variant spreads, Israel reports
Pfizer vaccine 65% effective against Delta variant, Israeli study finds
PFIZER VACCINE ONLY 42% EFFECTIVE AGAINST THE DELTA VARIANT
Study finds Pfizer vaccine less effective against delta variant
How Effective Are Covid Vaccines Like Pfizer, AstraZeneca, Moderna And Others Against Delta Variant
Pfizer, Moderna COVID-19 vaccines less effective against delta variant
Delta Variant and Vaccines | Will vaccine Work?| Covishield | Pfizer BioNTech | Sputnik V| Covaxin
Study: Johnson and Johnson COVID vaccine not as effective as Pfizer, Moderna vaccines against de...
Pfizer vaccine highly effective against hospitalization from Delta variant, analysis shows
Pfizer vaccine stats against delta variant
Study suggests Pfizer vaccine is less effective against Delta variant