Avian pox is a slowly developing disease of birds caused by several different strains of avipoxvirus. Avipoxvirus is a member of the Poxviridae family. A variety of birds worldwide, including upland gamebirds, songbirds, marine birds, and the parrot family can become infected. The disease can be spread via mechanical vectors, primarily by species of mosquitoes. Transmission occurs when the mosquito feeds on an infected bird that has a viremia present or on virus-laden secretions from a pox lesion and then feeds on an uninfected bird. More Original pictures of Poultry Diseases, go to http://www.fieldcasestudy.com