CLEAN : J&J's top scientist on their single-dose Covid vaccine

The video discusses a single-shot vaccine studied globally, highlighting its stability and ease of distribution. The study was conducted across three continents, showing the vaccine's efficacy against severe disease and hospitalization. It emphasizes the importance of both antibody and cellular immunity for durable protection. The video also mentions ongoing efforts to develop vaccines for emerging variants.

What is a key feature of the single-shot vaccine discussed in the video?

• It is only effective in one continent.

• It requires multiple doses.

• It can be stored at room temperature.

• It is stable at normal refrigeration temperatures.

Which continents were involved in the global study of the vaccine?

• North America, Europe, and Asia

• Europe, Asia, and Australia

• Africa, Antarctica, and Asia

• USA, South America, and South Africa

What level of protection does the vaccine provide against severe disease?

• 100%

• 85%

• 75%

• 50%

What makes the vaccine's immunity both durable and broad-spectrum?

• Combination of antibody response and cellular immunity

• None of the above

• Only cellular immunity

• Only antibody response

Why was a vaccine based on the South African variant developed?

• Due to its ineffectiveness in other regions.

• To replace the original vaccine.

• As a precautionary measure.

• It was immediately needed.