Prevalence of Toxoplasma gondii Infection in Rabbits of Korea by Serological Tests and Nested Polymerase Chain Reaction
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概要
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This study surveyed the Toxoplasma(T.) gondii infection prevalence in Korean rabbit population. Rabbits (n=142) were obtained from two breeding farms in the Gongju area, Chungnam Province and in the Kochang area, Junbuk Province, Korea. Of 142 sera samples analyzed by enzyme-linked immunosorbent assay (ELISA), 15 (10.6%) exhibited T. gondii-specific IgG antibodies and 1 (0.7%) rabbit harbored T. gondii-specific IgM. Female rabbits (9/84; 10.7%) had a similar T. gondii prevalence to males (6/58; 10.3%). When stratified by age, rabbits aged>1 year had a similar prevalence of T. gondii infection (7/66; 10.6%) with rabbits aged<1 year (8/76; 10.5%). Immunoblotting detected 6 major antigenic bands corresponding to T. gondii-positive sera at 20, 28, 30, 35, 63 and 77 kDa. Nested polymerase chain reaction (PCR) of whole-blood samples detected the T. gondii B1 gene in 23rabbits (16.2%). All PCR-positive samples corresponded to partial T. gondii B1 gene sequences with 99% homology to a T. gondii sequence deposited in GenBank (accession number EU340874). Female rabbits (13/84; 15.5%) harbored a similar prevalence of T. gondii DNA to males (10/58; 17.2%). Rabbits aged>1 year had a similar prevalence (12/66; 18.2%) of T. gondii infection to rabbits aged<1 year (11/76; 14.5%). No statistically significant differences were observed regarding the prevalences of infection according to sex, or age using molecular or serological tests. This study is the first survey using serological tests and nested PCR to analyze the T. gondii prevalence in rabbits in Korea.
著者
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SONG Kun-Ho
Laboratories of veterinarylnternal Medicine
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HONG Sung-Hee
Division of Malaria & Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong-eup, Cheongwon-gun, Chungbuk 363–951, Korea
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SHIN Hyun-Guk
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, Daejeon 305–764, Korea
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LEE Sang-
Division of Malaria & Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong-eup, Cheongwon-gun, Chungbuk 363–951, Korea
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KIM Se-Mi
Laboratory of Microbiology, College of Medicine, Chungbuk National University, Cheongju 361–763, Korea
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CHOI Young-Ki
Laboratory of Microbiology, College of Medicine, Chungbuk National University, Cheongju 361–763, Korea
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PARK Hyung-Jin
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, Daejeon 305–764, Korea
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SEO Kyoung-Won
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, Daejeon 305–764, Korea
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SONG Kun-Ho
Laboratory of Veterinary Internal Medicine, College of Veterinary Medicine, Chungnam National University, Daejeon 305–764, Korea
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LEE Sang-
Division of Malaria & Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong-eup, Cheongwon-gun, Chungbuk 363–951, Korea
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LEE Sang-Eun
Division of Malaria & Parasitic Diseases, Korea National Institute of Health, Korea Centers for Disease Control and Prevention, Osong-eup, Cheongwon-gun, Chungbuk 363–951, Korea
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