astrazeneca

Johnson & Johnson vaccine much less effective against Delta variant: Study

Researchers looking to modify some COVID-19 vaccines over blood clot risk

Researchers looking to modify some COVID-19 vaccines over blood clot risk

Delta variant: Moderna & Pfizer doses effective, jury out on Johnson & Johnson vax

What do we know about the Johnson & Johnson vaccine and blood clots?

U.S. will begin sharing its entire stock of AstraZeneca COVID-19 vaccines with the world once it clears federal safety reviews

Despite rift with U.S. officials, AstraZeneca vaccine is highly effective against COVID-19

AstraZeneca's US trial may have included 'outdated information,' health officials say

U.S. plans to send a combined 4 million doses of AstraZeneca COVID-19 vaccine to Mexico and Canada

EU's drug agency concludes that AstraZeneca vaccine not linked to increased risk of blood clots