Korean J Parasitol.
2017 Apr;55(2):203-206. 10.3347/kjp.2017.55.2.203.
Seroprevalence and Risk Factors of Toxoplasma gondii Infection among Cat Sitters in Korea
- Affiliations
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- 1Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 03080, Korea. cjy@snu.ac.kr
- 2Institute of Parasitic Diseases, Korea Association of Health Promotion, Seoul 07653, Korea.
- 3Division of Malaria and Parasitic Diseases, Korea National Research Institute of Health, Korea Center for Disease Control and Prevention, Cheongju 28159, Korea.
- 4Department of Infectious Disease, Asan Medical Center, Seoul 05505, Korea.
- 5Seoul National University Bundang Hospital, Seongnam 13620, Korea.
- KMID: 2379424
- DOI: http://doi.org/10.3347/kjp.2017.55.2.203
Abstract
- The seroprevalence of human toxoplasmosis has been increasing in Korea, and it is controversial whether cats are an important infection source or not. This study was performed to evaluate the seroprevalence of Toxoplasma gondii infection in a high risk group (cat sitters) and to determine the possible importance of cats as an infection source in Korea. Risk factors, including the age, sex, and diet of cat sitters, their contact experience and contact frequency with stray cats, and origin, number, and outdoor activity of their pet cats, were analyzed using structured questionnaires. A total of 673 serum samples from people who have frequent contact with cats (high risk group) and 1,114 samples from general people (low risk group) were examined for specific IgG antibodies against T. gondii by ELISA. The results revealed that the overall seroprevalence of T. gondii infection was 7.4% (n=1,787). The seroprevalence among low risk group was 8.0% (89/1,114), whereas that among high risk group was rather lower 6.4% (43/673), though this difference was statistically not significant (P=0.211). Among the risk factors, only the outdoor activity of pet cats was important; people having cats with outdoor activities revealed 2 times higher seroprevalence than people having cats with only indoor activities (P=0.027). In conclusion, the seroprevalence of T. gondii was not significantly different between the high risk group and low risk group, and the importance of cats as a source of infection in Korea is questionable.
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