AstraZeneca COVID Vaccine Slightly Less Effective Than First Reported

AstraZeneca has revised its analysis of a large clinical trial involving its new COVID-19 vaccine and it may not be as effective as initially reported.

• Mar 25, 2021

AstraZeneca May Have 'Included Outdated Information' In COVID-19 Vaccine Trial Report, U.S. Says

AstraZeneca may have used "outdated information" when it released data from a late-stage trial of its COVID-19 vaccine Monday, federal officials say.

• Mar 23, 2021

AstraZeneca Could Soon Be Fourth U.S. COVID Vaccine Based On New Research

New research from AstraZeneca could lead to the U.S. getting a fourth COVID vaccine soon.

• Mar 22, 2021

States Planning How To Distribute COVID-19 Vaccine

People are staying hopeful and optimistic as Astra-Zeneca, Moderna and Pfizer all report their Covid-19 vaccines are "highly effective" in late trials.

• Nov 23, 2020

How AstraZeneca COVID-19 Vaccine Compares To Moderna, Pfizer

AstraZeneca said that late-stage trials show its COVID-19 vaccine is up to 90-percent effective.

• Nov 23, 2020

Broad Institute Announces Collaboration With AstraZeneca

The collaboration is aimed at targeting dangerous bacterial infections that don't react to existing drugs.

• Sep 10, 2012