{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,25]],"date-time":"2026-01-25T20:12:28Z","timestamp":1769371948937,"version":"3.49.0"},"reference-count":44,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2012,1,1]],"date-time":"2012-01-01T00:00:00Z","timestamp":1325376000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Parasitology Research"],"published-print":{"date-parts":[[2012]]},"abstract":"<jats:p>Protective factors associated with atopy or asthma in rural areas include socioeconomic level, overcrowding, and helminth infection. However, little epidemiological information was originated from schistosomiasis areas. This study aimed to investigate factors associated with asthma in a schistosomiasis endemic area. A questionnaire was used to obtain information on demographics, socioeconomic, and environmental features. The ISAAC questionnaire was used to identify individuals with asthma. Parasitological exam was done in all participants and skin prick test to aeroallergens in all asthmatics. Prevalence of<jats:italic>Schistosoma mansoni<\/jats:italic>infection was 57.4% and<jats:italic>Ascaris lumbricoides,<\/jats:italic>30.8%. Asthma was found in 13.1% of the population, and 35.1% of them had a positive SPT. Active and passive smoking was positively associated with asthma, whereas<jats:italic>A. lumbricoides<\/jats:italic>was negatively associated. In a schistosomiasis hyperendemic region, current infection with<jats:italic>A. lumbricoides<\/jats:italic>is protective against asthma. However, we cannot rule out the involvement of<jats:italic>S. mansoni<\/jats:italic>infection in this process.<\/jats:p>","DOI":"10.1155\/2012\/796820","type":"journal-article","created":{"date-parts":[[2012,8,23]],"date-time":"2012-08-23T21:02:28Z","timestamp":1345755748000},"page":"1-8","source":"Crossref","is-referenced-by-count":6,"title":["Risk Factors for Asthma in a Helminth Endemic Area in Bahia, Brazil"],"prefix":"10.1155","volume":"2012","author":[{"given":"Luciana S.","family":"Cardoso","sequence":"first","affiliation":[{"name":"Servi\u00e7o de Imunologia, Hospital Universit\u00e1rio Professor Edgard Santos, Universidade Federal da Bahia, 40110-160 Salvador, BA, Brazil"},{"name":"Departamento de Ci\u00eancias da Vida, Universidade do Estado da Bahia, 41.150-000 Salvador, BA, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniela M.","family":"Costa","sequence":"additional","affiliation":[{"name":"Servi\u00e7o de Imunologia, Hospital 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