There has been an occasional out break of VHD inthe US. Myxo is endemic to the US west coast, but there areno vaccines for these diseasesin the US legally approved foruse on rabbits.
I posted the following info right after the last VHD outbreak:
The current policy is toeuthanize any rabbits that testpositive or are suspectedof having been exposed to thevirus. An extensive outbreak of this virus in the US couldresult in the slaughter of millions of rabbits in theUS.Vaccinatedrabbits will testpositive for VHD, and under current policy would be euthanized.
Thedisease is easier to contain in the US than in othercountries because the US does not have a wild species such as theEuropeanWildrabbitsthat serve as a virusreservoir easily spreading the disease throughout the country.
So far, this policy has prevented the diseasefrom becomingendemic to the United States. While it may not cause ahardship for pet owners to vaccinate, it would be an economic burdenfor large breeders to vaccinate their herds.
Quote directly taken from USDASeptember 15, 1997
"VHD is classified as foreign to the US. The USDAhas takenthe stance that if the disease is discovered in the US that aneradication program would be initiated at that time. Therefore,administration of a vaccine would be contraindicated. Since no VHDvaccineis licensed for use in the US and no company wouldrealize any profit from pursuit of such a product there is no changeanticipated in policy from the USDA."