期刊
KOREAN JOURNAL OF PARASITOLOGY
卷 50, 期 4, 页码 287-293出版社
KOREAN SOC PARASITOLOGY, SEOUL NATL UNIV COLL MEDI
DOI: 10.3347/kjp.2012.50.4.287
关键词
Toxoplasma gondii; seroprevalence; B1 gene; resident; Seoul; Jeju-do; IgG; ELISA
类别
资金
- Korea National Institute of Health, Ministry of Health and Welfare, the Republic of Korea [800-20110036]
Knowledge of the prevalence of human Toxoplasma gondii infection is required in the Republic of Korea. In this study, we surveyed the seroprevalence of T gondii infection and analyzed the risk factors associated with seropositivity among residents in 2 administrative districts; Seoul and the island of Jeju-do, which have contrasting epidemiologic characteristics. Sera and blood collected from 2,150 residents (1,114 in Seoul and 1,036 in Jeju-do) were checked for IgG antibody titers using ELISA and for the T gondii B1 gene using PCR. In addition, participants completed a questionnaire that solicited information on gender, age, occupation, eating habits, history of contact with animals, and travel abroad. The T gondii B1 gene was not detected in all residents examined. However, ELISA showed 8.0% (89 of 1,114 sera) positive for IgG antibodies against T gondii in Seoul and 11.3% (117 of 1,036 sera) in Jeju-do. In both districts, the positive rates were higher in males than in females, and those 40-79 years of age showed higher rates than other ages. In Seoul, residents older than 70 years of age showed the highest positive rate, 14.9%, whereas in Jeju-do the highest prevalence, 15.6%, was in those in their sixties. The higher seropositive rate in Jeju-do than in Seoul may be related to eating habits and occupations. The present results and a review of related literature are indicative of an increased seroprevalence of T gondii in Korea in recent years.
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