{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T19:38:03Z","timestamp":1793475483232,"version":"4.5.0"},"reference-count":35,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2008,3,1]],"date-time":"2008-03-01T00:00:00Z","timestamp":1204329600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2008,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The presence of helminths and protozoans in public squares and lawns of the city of Maring\u00e1, southern Brazil, during winter and summer was assessed in order to evaluate their seasonal fluctuations in relation to edaphic and climatic factors. Samples were collected from January 2003 through June 2004 in 90% (13) of all public squares covered by sand, and in 30% (4) of all lawns used as leisure areas. The samples were analysed quantitatively by modified centrifugal-flotation and sedimentation in water techniques, and qualitatively by a method based on positive larval thermo-hydrotropism. Meteorological data were recorded, and physical, chemical and structural characteristics of the soil were analysed. One hundred and thirty samples of sand from squares, 65 in summer and 65 in winter, and 40 samples of grass from lawns, 20 in each season, were collected. All samples from lawns, 62 (95.38%) from squares in winter and 45 (69.23%) in summer, contained protozoans and\/or helminths. Eggs of<jats:italic>Toxocara<\/jats:italic>spp. were the most frequently observed parasites in both winter and summer in squares (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.0001) and in lawns (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.6142), being equally distributed among the different locations (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.2038). Species diversity was lower in winter; fewer parasites were found in summer. This region, with a tropical climate and a mild winter dry season, has favourable edaphic and climatic conditions for soil contaminants to persist year-round. In addition, the high frequency of animals such as dogs and cats and the poor sanitary measures in force made it possible for zoonoses to be transmitted in the public spaces.<\/jats:p>","DOI":"10.1017\/s0022149x07870829","type":"journal-article","created":{"date-parts":[[2007,12,6]],"date-time":"2007-12-06T11:27:35Z","timestamp":1196940455000},"page":"1-6","source":"Crossref","is-referenced-by-count":37,"title":["Seasonal contamination of public squares and lawns by parasites with zoonotic potential in southern Brazil"],"prefix":"10.1017","volume":"82","author":[{"given":"R.","family":"Tiyo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.A.","family":"Guedes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.L.M.","family":"Falavigna","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.L.","family":"Falavigna-Guilherme","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2008,3,1]]},"reference":[{"key":"S0022149X07870829_ref18","doi-asserted-by":"crossref","first-page":"903","DOI":"10.1590\/S0074-02762001000700004","article-title":"Environmental pollution with soil-transmitted helminths in Sanliurfa, Turkey","volume":"96","author":"Mustafa","year":"2001","journal-title":"Mem\u00f3rias do Instituto Oswaldo Cruz"},{"key":"S0022149X07870829_ref7","first-page":"45","article-title":"Environmental contamination with helminth infective stages implicated in water and foodborne diseases","volume":"52","author":"Doligalska","year":"2003","journal-title":"Acta Microbiologica Polonica"},{"key":"S0022149X07870829_ref21","first-page":"224","article-title":"Seasonal prevalence of protozoan parasites in Nusukka, Nigeria","volume":"24","author":"Nzeako","year":"1992","journal-title":"Journal of Communicable Diseases"},{"key":"S0022149X07870829_ref32","unstructured":"Silveira L.M. (2003) An\u00e1lise r\u00edtmica dos tipos de tempo no norte do Paran\u00e1 aplicada ao clima local de Maring\u00e1 \u2013 Paran\u00e1. 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