AstraZeneca: Vaccine Averaged 70% Effectiveness

AstraZeneca's vaccine candidate shows up to 90% efficacy with a specific dosing regimen, but averages 70% when combined with another regimen. AstraZeneca is the third major company to report high efficacy, following Pfizer and Moderna, whose vaccines are nearly 95% effective.

What was the unique aspect of the first dosing regimen for AstraZeneca's vaccine?

• Participants received two full doses.

• Participants received a half dose followed by a full dose.

• Participants received a full dose followed by a half dose.

• Participants received two half doses.

What is the average efficacy rate of AstraZeneca's vaccine when combining both dosing regimens?

• 60%

• 80%

• 70%

• 90%

Which company reported a vaccine efficacy rate of around 95%?

• Pfizer

• Johnson & Johnson

• Novavax

• AstraZeneca

How many major companies have reported high efficacy rates for their vaccines, including AstraZeneca?

• One

• Two

• Three

• Four

Which of the following companies is NOT mentioned in the transcript as having reported high vaccine efficacy?

• Pfizer

• Johnson & Johnson

• Moderna

• AstraZeneca