Vaccine Hesitancy And Logistics Troubles

With the announcement of a Covid-19 vaccine now in emergency use in several countries, and just approved in the US, many believe that this is the beginning of the end for the pandemic. But the rollout of these vaccines may not be so simple. We speak to Benjamin Cowling, Professor of Infectious Disease Epidemiology at the University of Hong Kong, about vaccine regulations, storage, and how much it will take to achieve herd immunity.

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