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Comparative Study of the Accuracy of Different Techniques for the Laboratory Diagnosis of Schistosomiasis Mansoni in Areas of Low Endemicity in Barra Mansa City, Rio de Janeiro State, Brazil
Schistosomiasis constitutes a major public health problem, with an estimated 200 million people infected worldwide. Many areas of Brazil show low endemicity of schistosomiasis, and the current standard parasitological techniques are not sufficiently sensitive to detect the low-level helminth infecti...
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Published in: | BioMed research international 2015-01, Vol.2015 (2015), p.1-16 |
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creator | Pinho, João Renato Rebello Carrilho, Flair J. Gryschek, Ronaldo Cesar Borges Chieffi, Pedro Paulo Gonçalves, Elenice Messias do Nascimento Castilho, Vera Lúcia Pagliusi Dias-Neto, Emmanuel Sanchez, Maria Carmen Arroyo Pinto, Pedro Luiz Silva Alvarado-Mora, Mónica Viviana Espírito-Santo, Maria Cristina Carvalho Luna, Expedito José de Albuquerque |
description | Schistosomiasis constitutes a major public health problem, with an estimated 200 million people infected worldwide. Many areas of Brazil show low endemicity of schistosomiasis, and the current standard parasitological techniques are not sufficiently sensitive to detect the low-level helminth infections common in areas of low endemicity (ALEs). This study compared the Kato-Katz (KK); Hoffman, Pons, and Janer (HH); enzyme-linked immunosorbent assay- (ELISA-) IgG and ELISA-IgM; indirect immunofluorescence technique (IFT-IgM); and qPCR techniques for schistosomiasis detection in serum and fecal samples, using the circumoval precipitin test (COPT) as reference. An epidemiological survey was conducted in a randomized sample of residents from five neighborhoods of Barra Mansa, RJ, with 610 fecal and 612 serum samples. ELISA-IgM (21.4%) showed the highest positivity and HH and KK techniques were the least sensitive (0.8%). All techniques except qPCR-serum showed high accuracy (82–95.5%), differed significantly from COPT in positivity P |
doi_str_mv | 10.1155/2015/135689 |
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Many areas of Brazil show low endemicity of schistosomiasis, and the current standard parasitological techniques are not sufficiently sensitive to detect the low-level helminth infections common in areas of low endemicity (ALEs). This study compared the Kato-Katz (KK); Hoffman, Pons, and Janer (HH); enzyme-linked immunosorbent assay- (ELISA-) IgG and ELISA-IgM; indirect immunofluorescence technique (IFT-IgM); and qPCR techniques for schistosomiasis detection in serum and fecal samples, using the circumoval precipitin test (COPT) as reference. An epidemiological survey was conducted in a randomized sample of residents from five neighborhoods of Barra Mansa, RJ, with 610 fecal and 612 serum samples. ELISA-IgM (21.4%) showed the highest positivity and HH and KK techniques were the least sensitive (0.8%). All techniques except qPCR-serum showed high accuracy (82–95.5%), differed significantly from COPT in positivity P<0.05, and showed poor agreement with COPT. Medium agreement was seen with ELISA-IgG (Kappa = 0.377) and IFA (Kappa = 0.347). Parasitological techniques showed much lower positivity rates than those by other techniques. We suggest the possibility of using a combination of laboratory tools for the diagnosis of schistosomiasis in ALEs.</description><identifier>ISSN: 2314-6133</identifier><identifier>EISSN: 2314-6141</identifier><identifier>DOI: 10.1155/2015/135689</identifier><identifier>PMID: 26504777</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Adolescent ; Adult ; Aged ; Aged, 80 and over ; Brazil - epidemiology ; Child ; Child, Preschool ; Clinical Laboratory Techniques - methods ; Clinical Laboratory Techniques - statistics & numerical data ; Colleges & universities ; Diagnosis ; Diagnosis, Laboratory ; Endemic Diseases - statistics & numerical data ; Female ; Gastroenterology ; Humans ; Immunoassay - methods ; Immunoassay - statistics & numerical data ; Immunology ; Infant ; Infections ; Laboratories ; Male ; Medicine ; Methods ; Middle Aged ; Parasites ; Parasitic diseases ; Parasitology ; Population Surveillance - methods ; Precipitin Tests - methods ; Precipitin Tests - statistics & numerical data ; Prevalence ; Public health ; Reproducibility of Results ; Risk Assessment - methods ; Schistosoma ; Schistosomiasis ; Schistosomiasis mansoni - diagnosis ; Schistosomiasis mansoni - epidemiology ; Schistosomiasis mansoni - parasitology ; Sensitivity and Specificity ; Young Adult</subject><ispartof>BioMed research international, 2015-01, Vol.2015 (2015), p.1-16</ispartof><rights>Copyright © 2015 Maria Cristina Carvalho Espírito-Santo et al.</rights><rights>COPYRIGHT 2015 John Wiley & Sons, Inc.</rights><rights>Copyright © 2015 Maria Cristina Carvalho Espirito-Santo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</rights><rights>Copyright © 2015 Maria Cristina Carvalho Espírito-Santo et al. 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c598t-32a26daa1d10d4e240bcdb61e3cf15587ff52deb13defb5a10defd23551944f63</citedby><cites>FETCH-LOGICAL-c598t-32a26daa1d10d4e240bcdb61e3cf15587ff52deb13defb5a10defd23551944f63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1722855121/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1722855121?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,780,784,885,25753,27924,27925,37012,37013,44590,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26504777$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Karl, Stephan</contributor><creatorcontrib>Pinho, João Renato Rebello</creatorcontrib><creatorcontrib>Carrilho, Flair J.</creatorcontrib><creatorcontrib>Gryschek, Ronaldo Cesar Borges</creatorcontrib><creatorcontrib>Chieffi, Pedro Paulo</creatorcontrib><creatorcontrib>Gonçalves, Elenice Messias do Nascimento</creatorcontrib><creatorcontrib>Castilho, Vera Lúcia Pagliusi</creatorcontrib><creatorcontrib>Dias-Neto, Emmanuel</creatorcontrib><creatorcontrib>Sanchez, Maria Carmen Arroyo</creatorcontrib><creatorcontrib>Pinto, Pedro Luiz Silva</creatorcontrib><creatorcontrib>Alvarado-Mora, Mónica Viviana</creatorcontrib><creatorcontrib>Espírito-Santo, Maria Cristina Carvalho</creatorcontrib><creatorcontrib>Luna, Expedito José de Albuquerque</creatorcontrib><title>Comparative Study of the Accuracy of Different Techniques for the Laboratory Diagnosis of Schistosomiasis Mansoni in Areas of Low Endemicity in Barra Mansa City, Rio de Janeiro State, Brazil</title><title>BioMed research international</title><addtitle>Biomed Res Int</addtitle><description>Schistosomiasis constitutes a major public health problem, with an estimated 200 million people infected worldwide. Many areas of Brazil show low endemicity of schistosomiasis, and the current standard parasitological techniques are not sufficiently sensitive to detect the low-level helminth infections common in areas of low endemicity (ALEs). This study compared the Kato-Katz (KK); Hoffman, Pons, and Janer (HH); enzyme-linked immunosorbent assay- (ELISA-) IgG and ELISA-IgM; indirect immunofluorescence technique (IFT-IgM); and qPCR techniques for schistosomiasis detection in serum and fecal samples, using the circumoval precipitin test (COPT) as reference. An epidemiological survey was conducted in a randomized sample of residents from five neighborhoods of Barra Mansa, RJ, with 610 fecal and 612 serum samples. ELISA-IgM (21.4%) showed the highest positivity and HH and KK techniques were the least sensitive (0.8%). All techniques except qPCR-serum showed high accuracy (82–95.5%), differed significantly from COPT in positivity P<0.05, and showed poor agreement with COPT. Medium agreement was seen with ELISA-IgG (Kappa = 0.377) and IFA (Kappa = 0.347). Parasitological techniques showed much lower positivity rates than those by other techniques. We suggest the possibility of using a combination of laboratory tools for the diagnosis of schistosomiasis in ALEs.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Brazil - epidemiology</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Clinical Laboratory Techniques - methods</subject><subject>Clinical Laboratory Techniques - statistics & numerical data</subject><subject>Colleges & universities</subject><subject>Diagnosis</subject><subject>Diagnosis, Laboratory</subject><subject>Endemic Diseases - statistics & numerical data</subject><subject>Female</subject><subject>Gastroenterology</subject><subject>Humans</subject><subject>Immunoassay - methods</subject><subject>Immunoassay - statistics & numerical data</subject><subject>Immunology</subject><subject>Infant</subject><subject>Infections</subject><subject>Laboratories</subject><subject>Male</subject><subject>Medicine</subject><subject>Methods</subject><subject>Middle Aged</subject><subject>Parasites</subject><subject>Parasitic diseases</subject><subject>Parasitology</subject><subject>Population Surveillance - methods</subject><subject>Precipitin Tests - methods</subject><subject>Precipitin Tests - statistics & numerical data</subject><subject>Prevalence</subject><subject>Public health</subject><subject>Reproducibility of Results</subject><subject>Risk Assessment - methods</subject><subject>Schistosoma</subject><subject>Schistosomiasis</subject><subject>Schistosomiasis mansoni - diagnosis</subject><subject>Schistosomiasis mansoni - epidemiology</subject><subject>Schistosomiasis mansoni - parasitology</subject><subject>Sensitivity and Specificity</subject><subject>Young Adult</subject><issn>2314-6133</issn><issn>2314-6141</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><recordid>eNqNkktv1DAUhSMEolXpij2yxAZBh8avPDaVpkN5aRASLWvrxo-Jq8Qe7KTV8OP4bTgzZSis6o3t689H9x6dLHuO87cYc35KcsxPMeVFVT_KDgnFbFZghh_vz5QeZMcxXudpVbjI6-JpdkAKnrOyLA-zXwvfryHAYG80uhxGtUHeoKHVaC7lGEBu7--sMTpoN6ArLVtnf4w6IuPDFlxC45OAD5vEwcr5aOP06VK2Ng4--t7CVPoCLnpnkXVoHjRsmaW_RRdO6d5KO2ymp3MIAbYsoEWqnaBv1iOl0Wdw2gafmoRBn6DzAD9t9yx7YqCL-vhuP8q-v7-4WnycLb9--LSYL2eS19UwowRIoQCwwrlimrC8kaopsKbSJBer0hhOlG4wVdo0HBKljSKUc1wzZgp6lJ3tdNdj02slkxUBOrEOtoewER6s-PfF2Vas_I1gyXHKaBJ4dScQ_OTeIHobpe66NJUfo8AlrwgrCsIfgJKyrmnO8oS-_A-99mNwyYmJIlXqn-C_1Ao6LawzPrUoJ1ExZ3wKBcEkUW92lAw-xqDNfjqciylrYsqa2GUt0S_uG7Jn_yQrAa93QGudglv7MDWdEG3gHswZxQX9DUuc5og</recordid><startdate>20150101</startdate><enddate>20150101</enddate><creator>Pinho, João Renato Rebello</creator><creator>Carrilho, Flair J.</creator><creator>Gryschek, Ronaldo Cesar Borges</creator><creator>Chieffi, Pedro Paulo</creator><creator>Gonçalves, Elenice Messias do Nascimento</creator><creator>Castilho, Vera Lúcia Pagliusi</creator><creator>Dias-Neto, Emmanuel</creator><creator>Sanchez, Maria Carmen Arroyo</creator><creator>Pinto, Pedro Luiz Silva</creator><creator>Alvarado-Mora, Mónica Viviana</creator><creator>Espírito-Santo, Maria Cristina Carvalho</creator><creator>Luna, Expedito José de Albuquerque</creator><general>Hindawi Publishing Corporation</general><general>John Wiley & Sons, Inc</general><general>Hindawi Limited</general><scope>ADJCN</scope><scope>AHFXO</scope><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QL</scope><scope>7QO</scope><scope>7T7</scope><scope>7TK</scope><scope>7U7</scope><scope>7U9</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150101</creationdate><title>Comparative Study of the Accuracy of Different Techniques for the Laboratory Diagnosis of Schistosomiasis Mansoni in Areas of Low Endemicity in Barra Mansa City, Rio de Janeiro State, Brazil</title><author>Pinho, João Renato Rebello ; Carrilho, Flair J. ; Gryschek, Ronaldo Cesar Borges ; Chieffi, Pedro Paulo ; Gonçalves, Elenice Messias do Nascimento ; Castilho, Vera Lúcia Pagliusi ; Dias-Neto, Emmanuel ; Sanchez, Maria Carmen Arroyo ; Pinto, Pedro Luiz Silva ; Alvarado-Mora, Mónica Viviana ; Espírito-Santo, Maria Cristina Carvalho ; Luna, Expedito José de Albuquerque</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c598t-32a26daa1d10d4e240bcdb61e3cf15587ff52deb13defb5a10defd23551944f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Brazil - 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Many areas of Brazil show low endemicity of schistosomiasis, and the current standard parasitological techniques are not sufficiently sensitive to detect the low-level helminth infections common in areas of low endemicity (ALEs). This study compared the Kato-Katz (KK); Hoffman, Pons, and Janer (HH); enzyme-linked immunosorbent assay- (ELISA-) IgG and ELISA-IgM; indirect immunofluorescence technique (IFT-IgM); and qPCR techniques for schistosomiasis detection in serum and fecal samples, using the circumoval precipitin test (COPT) as reference. An epidemiological survey was conducted in a randomized sample of residents from five neighborhoods of Barra Mansa, RJ, with 610 fecal and 612 serum samples. ELISA-IgM (21.4%) showed the highest positivity and HH and KK techniques were the least sensitive (0.8%). All techniques except qPCR-serum showed high accuracy (82–95.5%), differed significantly from COPT in positivity P<0.05, and showed poor agreement with COPT. Medium agreement was seen with ELISA-IgG (Kappa = 0.377) and IFA (Kappa = 0.347). Parasitological techniques showed much lower positivity rates than those by other techniques. We suggest the possibility of using a combination of laboratory tools for the diagnosis of schistosomiasis in ALEs.</abstract><cop>Cairo, Egypt</cop><pub>Hindawi Publishing Corporation</pub><pmid>26504777</pmid><doi>10.1155/2015/135689</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Adolescent Adult Aged Aged, 80 and over Brazil - epidemiology Child Child, Preschool Clinical Laboratory Techniques - methods Clinical Laboratory Techniques - statistics & numerical data Colleges & universities Diagnosis Diagnosis, Laboratory Endemic Diseases - statistics & numerical data Female Gastroenterology Humans Immunoassay - methods Immunoassay - statistics & numerical data Immunology Infant Infections Laboratories Male Medicine Methods Middle Aged Parasites Parasitic diseases Parasitology Population Surveillance - methods Precipitin Tests - methods Precipitin Tests - statistics & numerical data Prevalence Public health Reproducibility of Results Risk Assessment - methods Schistosoma Schistosomiasis Schistosomiasis mansoni - diagnosis Schistosomiasis mansoni - epidemiology Schistosomiasis mansoni - parasitology Sensitivity and Specificity Young Adult |
title | Comparative Study of the Accuracy of Different Techniques for the Laboratory Diagnosis of Schistosomiasis Mansoni in Areas of Low Endemicity in Barra Mansa City, Rio de Janeiro State, Brazil |
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