This week Fred and Nick discuss the positive impact vaccines are having beyond the basic prevention of disease that includes a 50% reduction in transmission of the virus in those people who have been vaccinated. The importance of being fully vaccinated even if you have had COVID19 in the past

And we review SARS-CoV-2 and the number of variants emerging, which in this case is no more than expected but seems higher because we are witnessing evolution in real-time with a front-row seat. We discuss the concern of the rise in variants which are a result of the evolutionary pressures of the widespread circulation of SARS-CoV-2 in the human population. The large number of cases has favored the global emergence and the natural selection of several variants of concern.

For those interested, the UK has an excellent resource for tracking these variants

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