Christian Yates, senior lecturer in mathematical biology at the University of Bath, reports in the blog The Conversation, that all the coronavirus in the world could fit inside a soda can, with plenty of room to spare.

As Yates explains, "When I was asked to calculate the total volume of SARS-CoV-2 in the world for the BBC Radio 4 show More or Less, I will admit I had no idea what the answer would be. My wife suggested it would be the size of an Olympic swimming pool. 'Either that or a teaspoon,' she said. 'It’s usually one or the other with these sorts of questions.' So, how to set about calculating an approximation of what the total volume really is? Fortunately, I have some form with these sorts of large-scale back-of-the-envelope estimations, having carried out a number of them for my book The Maths of Life and Death. Before we embark on this particular numerical journey, though, I should be clear that this is an approximation based on the most reasonable assumptions, but I will happily admit there may be places where it can be improved."

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