What was the reason for some AstraZeneca trial participants in the US to receive the Pfizer vaccine?
Testing Underway on Combining Covid Vaccines: Johns Hopkins

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Business, Health Sciences, Biology
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To prevent side effects from AstraZeneca
Due to a shortage of AstraZeneca doses
Because of lower efficacy signals at the time
To test the combination of both vaccines
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the efficacy rate of the AstraZeneca vaccine when the second dose is delayed by 10 to 12 weeks?
90%
95%
70%
82%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the US hesitant to adopt the UK's vaccine dosing strategy?
Due to concerns about vaccine supply
To maintain international consistency
Because of potential pressure on virus variants
To avoid public confusion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a significant challenge in the US vaccine rollout according to the transcript?
Limited storage facilities
High cost of vaccines
Hesitancy among long-term care workers
Lack of vaccine doses
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who are currently prioritized for vaccination in most US states?
All adults regardless of age
Individuals under 65 with no health issues
Frontline workers and those 65 and older
Only healthcare workers
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