- Given the urgency of the pandemic, testing vaccine candidates with a wide variety of populations and age groups can prove challenging, Gates said.
- Still, Gates believes that "a lot" of people will take a vaccine when one becomes available, and believes herd immunity can be achieved if 70% to 80% of people take it.
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Bill Gates says a "final hurdle" to distributing a COVID-19 vaccine will be ensuring that people decide to take it.
Bill Gates
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