First molecular detection and genotyping of Psittacid herpesvirus 1 from pet parrot in Korea

Pacheco's disease (PD) is an acute, highly contagious disease that is often fatal to psittacine birds.This disease was first identified from psittacine birds (parrots) in 1929 in Brazil (Pacheco and Bier, 1930).Since then, the disease has been reported in various countries and continents, including the USA, Europe, South America, South Africa, and Japan (Gough and Alexander, 1993;Katoh et al., 2010).Such a global transmission of the disease is believed to be due to the international trade of pet parrots, as like in other parrot diseases (Tomaszewski et al., 2003;Franzo et al., 2022).PD is caused by psittacid herpesvirus-1 (PsHV-1), also known as psittacid alphaherpesvirus-1 and now renamed Iltovirus psittacidalpha1.This species belongs to the genus Iltovirus in the family Orthoherpesviridae of the order Herpesvirales (https://ictv.global/taxonomy).The PsHV-1 genome is approximately 163 kb in length and contains 73 predicted open reading frames (ORFs) (Thureen and KJVS