Bill Gates says the 'final hurdle' to a COVID-19 vaccine will be ensuring that people actually use it
of a coronavirus vaccine by January 2021 as part of its broader strategy around the development and distribution of COVID-19 vaccines and treatments.
The urgency of the coronavirus pandemic, which has killed 489,922 people around the globe and infected 9.6 million according to, means it could be challenging for scientists to spend a lot of time trialing vaccines with various age ranges and populations. "It's understandable that because of the urgency of this, the amount of time that you'll be out looking at it is just going to be less," Gates said when asked about the issue of vaccine hesitancy. "And so even for scientists really understanding, 'Ok, were the trial populations accounting for all of these different groups? How low does the age range go? . . .
Overall, Gates believes that "a lot of people" will be willing to take the vaccine and herd immunity could be achieved if between 70% and 80% of people do so. "It really could then exponentially drop the numbers," Gates said. "But we need that for the entire world if we're going to go back and have people taking vacations, international students, international sports events. So it'll take a while until we get this thing finished off on a global basis.
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