Thrond

@AlexanderThrond Magical ponies!? That's crazy talk. 

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Surely she has animals at home. I can't imagine Fluttershy wouldn't have a pet. 

Sure, but the wild animals at (say) her sanctuary are possible vectors. it is thought that, while originating in bats, the virus must have passed though at least one intermediatory animal as it has adopted genes from other viruses NOT found in bats.

(Pangolins are a strong suspect; those other genes ARE found in pangolin-specific retroviruses, and because trade in pangolins or their meat is illegal, if that WAS a vector, there would obviously be no records of the sale or origin)

For Influenza, pigs and chickens are common intermediatory hosts.

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Sure, but the wild animals at (say) her sanctuary are possible vectors. it is thought that, while originating in bats, the virus must have passed though at least one intermediatory animal as it has adopted genes from other viruses NOT found in bats.

(Pangolins are a strong suspect; those other genes ARE found in pangolin-specific retroviruses, and because trade in pangolins or their meat is illegal, if that WAS a vector, there would obviously be no records of the sale or origin)

For Influenza, pigs and chickens are common intermediatory hosts.

Look if we're getting into pony territory, then a lot of things are different. I don't think Fluttershy is dealing with any exotic animals in the Equestria Girls world, although she would be sad that she can't go to the pet shop or the zoo.