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4:10
YouTube
Gavi, the Vaccine Alliance
There are four types of COVID-19 vaccines: here’s how they work
The fight against COVID-19 has seen vaccine development move at record speed, with more than 170 different vaccines in trials. But how are they different from each other and how will they protect us against the disease? Subscribe for more videos: http://bit.ly/2VBpGY7 Follow Gavi on social media: Twitter: https://twitter.com/gavi Facebook ...
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