Tony Burke might like the idea, Senator Bill Heffernan would NOT be impressed!
Well yeah, but as I can attest from personal experience, Bill's a bit of a nutter.
I probably should have made my comment more clear:
Zoo Animal carrying FMD virus (but not showing signs of it) being looked after by a keeper while the animal is in Quarantine at Taronga Zoo. Keeper leaves with virus in his nasal passages. Keeper sheds virus some hours later at the Giraffe exhibit and Giraffes contract virus, which is passed to some country visitors when they feed the Giraffes. The next day they return home to Mittagong and give it to their sheep.
The virus can only survive in the human nasal passages for 24 - 48 hours. For people travelling to Australia from Europe or the States - well, most don't travel directly from the zoo to the airport.
HIx
But the problem with that scenario is that it's not a proper quarantine regimen. There's no way that the same people should be working with quarantined animals and *any* other animals.
The accepted level of protection for Australia is "very low, but not zero" risk of exposure. That implies a strict, conservative but realistic level of biosecurity. An animal that spends six weeks in quarantine in an exporting country and then another six weeks in quarantine in Australia is not a significant biosecurity risk.