The virus can be passed from from the first infected rabbits to other rabbits, but is not passed on a second time. The work has been carried out by the Centre for Investigation into Animal Health, Madrid, and reported in 'Vaccine', vol 19, p174. Australian researchers see rabits as a pest, in contrast to Spanish researchers, who want to increase their rabbit population. Outdoor hutches must be waterproof. Wood is preferable to metal or plastic, because it insulates better.
Heavy wood lasts longer than plywood.
Non-toxic wood preserver should be used. Chicken wire is not strong enough for the front of an outdoor cage. A sloping roof is needed for the rain to fall off, or an apex design can be used. Legs or bricks are needed to keep the base dry. Cages can be placed against a wall to provide some protection against wind.