title: The prevalence of duck hepatitis A virus types 1 and 3 on Korean duck farms.
abstract: This study reports the prevalence of duck hepatitis A virus (DHAV) types 1 and 3 on Korean duck farms. By RT-nested PCR assays specific for DHAV-1 or DHAV-3, DHAV-1 was detected in 9 of 157 liver samples (5.7 %) from 2 of 30 farms (6.7 %), and DHAV-3 was positive in 104 of 157 liver samples (66.2 %) from 23 of 30 farms (76.7 %). Dual infections with DHAV-1 and DHAV-3 were detected in 23 of 157 samples (14.6 %) from 5 of 30 farms (16.7 %). The data indicate that DHAV-3 infections are prevalent and that DHAV-1 reemerged in Korea, resulting in dual infections on several farms. Our data will help to establish a vaccination policy against DHAV-1 and DHAV-3 in Korea.
authors.affiliation: Laboratory of Veterinary Pathology, College of Veterinary Medicine, Chonnam National University, Gwangju, 500-757, Republic of Korea.
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Soliman
authors.forename: Mia Madel
authors.initials: MM
authors.lastname: Alfajaro
authors.forename: Min-Hee
authors.initials: MH
authors.lastname: Lee
authors.forename: Young-Ju
authors.initials: YJ
authors.lastname: Jeong
authors.forename: Deok-Song
authors.initials: DS
authors.lastname: Kim
authors.forename: Kyu-Yeol
authors.initials: KY
authors.lastname: Son
authors.forename: Joseph
authors.initials: J
authors.lastname: Kwon
authors.forename: Jong-Soon
authors.initials: JS
authors.lastname: Choi
authors.forename: Jong-Soo
authors.initials: JS
authors.lastname: Lim
authors.forename: Jong-Sung
authors.initials: JS
authors.lastname: Choi
authors.forename: Tae-Uk
authors.initials: TU
authors.lastname: Lee
authors.forename: Kyoung-Oh
authors.initials: KO
authors.lastname: Cho
authors.forename: Mun-Il
authors.initials: MI
authors.lastname: Kang
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D004372:Ducks / Q000821:virology*; D004371:Hepatitis Virus, Duck / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D006524:Hepatitis, Viral, Animal / Q000453:epidemiology* / Q000276:immunology / Q000517:prevention & control; D010850:Picornaviridae Infections / Q000453:epidemiology* / Q000276:immunology / Q000517:prevention & control; D012367:RNA, Viral / Q000235:genetics; D056910:Republic of Korea / Q000453:epidemiology; D017423:Sequence Analysis, RNA; D014611:Vaccination
chemical_list: D012367:RNA, Viral