Diseases, Conditions, Syndromes

Single Pfizer shot 90 percent effective after 21 days: study

A single dose of the Pfizer vaccine provides "very high" protection from COVID-19 after 21 days—without a 'top up' dose in the recommended time frame, according to a new study from the University of East Anglia.

Diseases, Conditions, Syndromes

Pfizer/BioNTech first dose 85% effective after 2-4 weeks: study

The first dose of the Pfizer/BioNTech vaccination is 85 percent effective against coronavirus infection between two and four weeks after inoculation, according to a study published in the Lancet medical journal.

Diseases, Conditions, Syndromes

Israeli study shows Pfizer vaccine 94 percent effective

Israel's largest healthcare provider said Sunday a study of more than half a million fully vaccinated Israelis indicated the Pfizer/BioNTech jab gave 94 percent protection against COVID-19.

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