🦠'There are 1.7 million undiscovered #viruses lurking in mammals &birds, half of which may have the ability to infect people. .#Pandemics are growing in number as human activities place more stress on the #environment'🌿 —@Sarah_Gibbens via @NatGeo nationalgeographic.com/envir…

Jan 3, 2021 · 2:18 PM UTC

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Need to stay safe, Less molestation of Natural World.
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If they are undiscovered, how do we know there are 1.7million of them? How do we know there aren't 0.17 million? Or 17million?