Johns Hopkins Dr. Keri Althoff Discusses the Delta Variant

What is the effectiveness of the COVID-19 vaccine after the first dose?

• 90%

• 65%

• 33%

• 50%

How effective are the mRNA vaccines against the Delta variant after full vaccination?

• 33%

• 88%

• 75%

• 60%

What is the efficacy of the J&J vaccine against the Delta variant?

• 75%

• 88%

• 60%

• 33%

What percentage of older adults in the US are vaccinated?

• 65%

• 95%

• 75%

• 85%

What is the current best method to prevent COVID-19 according to the transcript?

• Wearing masks

• Vaccination

• Social distancing

• Antiviral medications