AstraZeneca’s COVID-19 vaccine shows success: Here’s how it stacks up to others
10:15am PST - November 23rd, 2020 astrazeneca - Ars TechnicaAstraZeneca used two dosages: One 62% effective, the other 90%, for 70% average.
AstraZeneca used two dosages: One 62% effective, the other 90%, for 70% average.