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Asked by Maya to Kevin, Liz, Beccy, Rosie on 14 Jun 2017.
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anon answered on 14 Jun 2017:
To improve chances of moving to distant locations successfully:
It shouldn’t kill off the host too quickly, otherwise the person dies before they move.
It shouldn’t make the host immediately look sick. Otherwise the rest of us will not let them onto the bus, train, plane, …
The pathogen (the bacterium, virus, parasite) shouldn’t be too sensitive to temperature or humidity so it can spread in lots of different environments.
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