Paul Offit, Head of the Vaccine Education Center at the Children's Hospital of Philadelphia, spent 26 years working on the rotavirus vaccine before it was approved.

Offit reflects on the experience with The Agenda with Stephen Cole and says he is optimistic that a COVID-19 vaccine can become available by early 2021.

However, he argues that the vaccine will not be enough to end the spread of this virus and that social distancing measures and the requirement to wear a mask will still need to be followed for some time to come.

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