Subscribe and 🔔 to OFFICIAL BBC YouTube 👉 https://bit.ly/2IXqEIn Stream original BBC programmes FIRST on BBC iPlayer 👉 https://bbc.in/2J18jYJ First broadcast 8th March 2021. Dr Guddi Singh envisages a time when we might be free of coronavirus, using a formula to derive the herd immunity threshold from the reproduction number and vaccine efficacy. Horizon | Coronavirus Special - What We Know Now | BBC #BBC #Horizon #BBCiPlayer All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ 👉 https://bbc.in/2m8ks6v.
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