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The video discusses the rapid manufacturing and distribution of a vaccine, emphasizing the urgency to protect as many people as possible. It highlights the early stage of vaccine development, noting uncertainties about its protection level. The vaccine shows a promising 90% protection rate and appears safe. Despite fewer deaths per 100 infections, the high number of total infections could lead to more deaths, a situation to be avoided.

What uncertainties exist regarding the number of people who will be protected by the vaccine?

Why is it important to avoid a tragic situation related to vaccine distribution and infection rates?