title: Herd-level seroprevalence of swine-influenza virus in Korea.
abstract: A total of 911 serum samples from 130 herds (an average of nine serum samples per herd) in Korea were examined for antibody to swine H1N1-influenza virus using enzyme-linked immunosorbent assay (ELISA). The list of farms was obtained from the Korean Swine Association, and herds were included from all five of the country's states. Farms were selected using a random-numbers table for swine within farms and for farms. All serum samples were collected from 22- to 24-week-old finishing pigs between September 2000 and March 2001. By ELISA, 93 out of 130 sampled herds (71.5%) were positive against swine H1N1-influenza virus. Our data suggested that seropositive herds for swine H1N1-influenza virus are distributed diffusely throughout the Republic of Korea.
authors.affiliation: Department of Veterinary Pathology, College of Veterinary Medicine, School of Agricultural Biotechnology, Seoul National University, 441-744, Kyounggi-Do, Suwon, South Korea.
authors.forename: Taewon
authors.initials: T
authors.lastname: Jung
authors.forename: Changsun
authors.initials: C
authors.lastname: Choi
authors.forename: Han Kook
authors.initials: HK
authors.lastname: Chung
authors.forename: Junghyun
authors.initials: J
authors.lastname: Kim
authors.forename: Wan-Seob
authors.initials: WS
authors.lastname: Cho
authors.forename: Kwonil
authors.initials: K
authors.lastname: Jung
authors.forename: Chanhee
authors.initials: C
authors.lastname: Chae
mesh_terms: D000818:Animals; D004797:Enzyme-Linked Immunosorbent Assay; D009980:Influenza A virus / Q000276:immunology / Q000302:isolation & purification*; D007723:Korea; D009976:Orthomyxoviridae Infections / Q000453:epidemiology* / Q000662:veterinary* / Q000821:virology; D012307:Risk Factors; D012698:Serologic Tests; D013552:Swine / Q000821:virology*; D013553:Swine Diseases / Q000453:epidemiology* / Q000821:virology*