If an alien visited Earth, they would take some note of humans, but probably spend most of their time trying to understand the dominant form of life on our planet - microorganisms like bacteria and viruses. Nathan Wolfe More Quotes by Nathan Wolfe More Quotes From Nathan Wolfe We see new things all the time. We see new retroviruses out there - which is the category that HIV falls into - and we're very, very concerned because this is the part of the world where HIV jumped from chimpanzees to humans. Nathan Wolfe new new-things time world There are commonalities among all the pandemics that occur, and we can learn from them. One commonality is that they all come from animals. And the other commonality is that we wait too long. Nathan Wolfe learn animals wait long If we can contain and monitor animal viruses at an earlier stage - when they're first entering human populations, preferably before they've had a chance to become human-adapted, certainly before they've had a chance to spread - we can head off pandemics altogether. Nathan Wolfe human stage chance animal