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A comment on My dad launched the quest to find alien intelligence. Parent comment

Re:My dad launched the quest to find alien intelligence by zamfi on Tuesday June 23, 2020 @11:03PM (#23623536)
> it stands to reason that over all of the exploring, investigating and just plain spreading that we do, we'd encounter some bacteria that are new to a population. If those had any great chance of killing us off, shouldn't at least local examples exist of that happening?

We have examples of exactly this! It was very bad: https://en.wikipedia.org/wiki/Native_American_disease_and_ep...

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Re:My dad launched the quest to find alien intelligence by kadoban on Thursday June 25, 2020 @02:58PM (#23644192)
Those were diseases already in humans moving to an untouched population of humans, not what I was talking about.

A bacterium that hasn't seem humans before is pretty unlikely to be able to do anything to us. One that hasn't even been in mammals before is even less likely, etc.

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