Pacheco's disease it is named after the Brazilian veterinarian, Genesio Pacheco, who first came across the disease in 1929, in an outbreak affecting the turquoise-fronted amazon parrot, "Amazona aestiva". Initially, Pacheco's disease was thought to be a manifestation of avian psittacosis. The causative agent of the disease, a herpesvirus, was not identified until 1975. Pacheco's disease Pacheco's disease is an acute and often lethal infectious disease in psittacine birds. The disease is caused by a species of herpesvirus, Psittacid alphaherpesvirus 1 (PsHV-1), which consists of four genotypes. Birds which do not succumb to Pacheco's disease after infection with the virus become asymptomatic
Birds of the Amazon million hectares are being cleared each year by large-scale clearings for various reasons including the construction of roads, power lines, hydroelectric projects, mining site development and government colonization programs. Deforestation, road clearings, lodging and agriculture are all related causes of the destruction of Amazonian birds' habitat. Deforestation of the Amazon rainforest is a continually growing problem which affects all animals and a major threat to migrating birds because it changes or removes sections of ecosystems and habitats. Birds may discover that the rainforest they flew to last year is seriously damaged or no longer exists. This is common for many