One example of the latter is the disease chytridiomycosis, spread by the fungus Batrachochytrium dendrobatidis. It was only found in africa, and then spread to north america through the pregnancy test frogs. nature.com/news/pregnancy-te…
Pregnancy test helped to bring frog-killing fungus to the US
Nature - Imported African animals released into the wild spread chytridiomycosis.nature.com
So it's something to keep in mind for the future, when I'm talking about things like this which stray outside of my usual "some weird/old computer thing" teardowns. This one definitely has wider social implications I should have thought more about before tweeting as usual.