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The Sixteenth Conference of the International Society for Environmental Epidemiology (ISEE): Abstracts

Farming Exposure in Childhood and Markers of Infection – Two Distinct Factors in the Development of Atopy?

Radon, Katja*; Eckart, Julia*; Dressel, Holger*; Windstetter, Doris*; Leitritz, Lorenz†; Reichert, Joerg*; Praml, Georg*; Mutius, Erika von‡; Nowak, Dennis*

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*Unit for Occupational and Environmental Epidemiology and Net Teaching, Institute for Occupational and Environmental Medicine, Munich, Germany; †Max-von-Pettenkofer Institut for Hygiene and Medical Microbiology, Munich, Germany; ‡Dr. von Hauner’s Childrens Hospital, Munich, Germany


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Within the context of the hygiene hypothesis we aimed to study the potential association between farming related risk factors and Toxoplasma gondii (T gondii) as well as Helicobacter pylori (H pylori) seropositivity.

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The study included questionnaire data and serum samples of 221 young adults living in a rural environment. Serum samples were analyzed for specific IgE to a common panel of aeroallergens (SX1) as well as IgG against T gondii and H pylori.

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The overall prevalence of T gondii infection as well as H pylori infection was 30.5%, in 9.3% of the population IgG against T gondii and H pylori was found. Regular contact with animal stables before age three years (odds ratio (95% confidence interval): 2.0 [1.0; 4.0]) and unpasteurized milk consumption at age 6 years (1.8 [1.0; 3.3]) were the strongest risk factor for T gondii infection. None of the farming related factors were significantly associated with H pylori infection. Subjects with T gondii seropositivity, IgG against H pylori, regular contact with animal stables and consumption of unpasteurized milk during childhood were least likely to be atopic (0.3 [0.1; 0.7]).

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Exposure to farming environments in childhood might predict T gondii seropositivity in rural subjects.

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This article has been cited 1 time(s).

Scandinavian Journal of Immunology
Specific IgE to respiratory allergens and IgG antibodies to Toxoplasma gondii and Streptococcus pneumoniae in norwegian military recruits
Ellertsen, LK; Hetland, G; Lovik, M
Scandinavian Journal of Immunology, 67(5): 496-500.
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© 2004 Lippincott Williams & Wilkins, Inc.

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