"TIL, around 2.1 billion years ago, several multicellular organisms existed, that were likely one of the first forays into multicellularity, they coincided with a brief moment of increased oxygen levels and went extinct after the levels dropped, they do not have any modern-day descendants."
"relatively few" yeah sure 2.8M over 132M infected .. it's peanuts compared to 7b of people on earth but it could be much worse if we all acted like the USA ... 555k death and counting ...
0.017% of the _legal_ population.