Journal Article

Environmental Exposure to <i>Toxocara</i> as a Possible Risk Factor for Asthma: A Clinic-Based Case-Control Study

Neda Sharghi, Peter M. Schantz, Lisa Caramico, Kathleen Ballas, Barbara A. Teague and Peter J. Hotez

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 32, issue 7, pages e111-e116
Published in print April 2001 | ISSN: 1058-4838
Published online April 2001 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/319593
Environmental Exposure to Toxocara as a Possible Risk Factor for Asthma: A Clinic-Based Case-Control Study

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The zoonotic ascarid Toxocara has been suggested as a possible etiologic agent of asthma. We conducted a clinic-based case-control study to examine whether the zoonotic infection acquired by ingesting Toxocara eggs is associated with asthma in children. Blood samples were collected from children aged 2–15 years, 95 of whom had asthma and 229 of whom did not have asthma. Risk factors for asthma and Toxocara infection were assessed by a questionnaire given to each child's parent or legal guardian. Blood samples were tested for the presence of Toxocara antibodies, using an enzyme-linked immunosorbent assay. No significant association was found between Toxocara infection and asthma. Significant associations were found between asthma and risk factors and between Toxocara infection and risk factors. High prevalence of Toxocara infection was noted among Hispanic children of Puerto Rican descent.

Journal Article.  2848 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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