Basic Animal Husbandry:
When a "bug" has infected your flock, herd or pack you quarantine and treat.
You DO NOT bring in new animals as they will surely become infected also NO exposing your animals to others.
You do not stress with travel or training/campaigning. When ALL members of the flock/herd/pack STOP displaying symptoms, then you wait the incubation period of the "bug" until they are exposed to other animals. This can easily be figured by counting the days from the exposure to the 1st sign of symptoms. THEN WAIT ANOTHER WEEK JUST FOR GOOD MEASURE !!! (THAT'S THE QUARANTINE PART)
Seek appropriate Veterinary attention, vaccines, drugs, and supportive care and time to let the "bug" run its course. (THAT'S THE TREATMENT PART)
You don't send the sick out amongst the healthy (PRETTY SIMPLE !!!!!!!!!!!!!!!!!!!)
Informing all your clients of the current health condition of the animals in your care, even if theirs is not symptomatic.
Exposure by confinement or proximity is just enough to mention this to your clients and keep them informed.
That even though their dog is not showing ANY symptoms of the "bug" that you will be scratching ALL your entries out of respect for your peers.
Contacting weekend boarding and new clients about the situation and refusing business until the exposure risk is over.
EVEN if this comes at a GREAT financial LOSS.
Not naming NAMES, when asked by the general public where the exposure occurred. In part because animals do get sick even with proper husbandry and because said persons ARE PARKED RIGHT IN THE MIDDLE OF THE CROWD AND DID NOT SCRATCH THEIR ENTRIES !!!!!!!