One thing that studying the evolution of SARS-CoV-2 has taught us, is how little we know about its current and future evolutionary trajectories. It is a virus that is full of surprises and has challenged popular assumptions many times already. 1/n
One often hears statements in media reports, that are rarely challenged, about how this virus will inevitable settle in to become mild, like some other coronaviruses. 2/n
A common example cited is 'Russian flu', presumed by some to have been a coronavirus. And yet, this is just that-an assumption. Such statements are completely lacking in evidence and follow several fallacies in understanding of viral evolution. 3/n
Unfortunately viruses do not inevitably evolve to become mild, and there is no evidence whatsoever that the mortality and morbidity of covid shows any signs of approaching those causes by common cold coronaviruses. 4/n
There is plenty of evolutionary space left for this virus to explore, and I would advice a healthy dose of caution whenever you hear someone say they can predict the direction that this will take. 5/n
Meanwhile, while levels of circulation remain high, it remains sensible for people to exercise what judgement and precautions they can take, while being aware of the risks of this virus. 6/n
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