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How many SARS-CoV-2 viruses in circulation at the moment? Mass?

How many SARS-CoV-2 viruses are in circulation at the moment? And what is their total mass? To clarify: if there are 10 000 viruses on average in an infected human and 100 000 humans are infected the answer would be (if all viruses are in humans, which probably isn’t true) 10^4 x 10^5 = 10^9 […]