Classifications vary greatly and are constantly changing so no issues. It is a common. Good quarantine will stop the spread of diseases from entering into the collection the issue is what is good quarantine?

Sadly the answer is easy, and a catch 22, it is procedures that stops diseases from spreading to anything else.

The reason why I would suggest IBD testing and now that it is available, retorvirus testing. This allows the shortening of the time line. If the two tests are done and negative the time line for quarantine could safely be reduced. As it stands it should be longer than the a symptomatic period of the possible disorders (24 months maybe longer)