Goose parvovirus (GPV) causes Derzsy’s disease in young geese and Muscovy ducks. The disease is can be highly contagious, with 70% to 100% mortality in goslings under the age of 4 weeks. The disease was first recognized in China in 1956.
Transmission: Goose parvovirus is spread through direct and indirect contact, usually associated with contamination of the environment with feces from infected hosts. It is also transmitted vertically. In older birds that become subclinically infected, a latent infection may become established. These birds may then act as carriers of the disease and transmit the virus through their eggs to their offspring.