Anal infections with concomitant Chlamydia trachomatisgenotypes among men who have sex with men in Amsterdam, the Netherlands
Lymphogranuloma venereum (LGV) proctitis is caused by Chlamydia trachomatis (Ct) genotype L and is endemic among men who have sex with men (MSM) in western society. Genotype L infections need to be distinguished from non-LGV (genotypes A-K) Ct infections since they require prolonged antibiotic treat...
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description | Lymphogranuloma venereum (LGV) proctitis is caused by Chlamydia trachomatis (Ct) genotype L and is endemic among men who have sex with men (MSM) in western society. Genotype L infections need to be distinguished from non-LGV (genotypes A-K) Ct infections since they require prolonged antibiotic treatment. For this purpose, an in-house developed pmpH based LGV polymerase chain reaction (PCR) test is used at the Amsterdam STI outpatient clinic. We investigated retrospectively the anal Ct genotype distribution, and the frequency of concomitant genotype infections in MSM infected with LGV and non-LGV Ct infections. To detect concomitant Ct genotype infections, the pmpH LGV PCR and genoTyping Reverse Hybridization Assay (Ct-DT RHA) were used. A total of 201 Ct positive rectal swabs from MSM were selected, which were previously diagnosed as either LGV (n = 99) or non-LGV Ct infection (n = 102) according to the algorithm of Ct detection by the commercially available Aptima Combo 2 assay followed by an in-house pmpH LGV PCR. The samples were retested with the commercially available Ct-DT RHA, which differentiates between 14 major genotypes and is able to detect concomitant Ct genotypes. Excellent genotyping agreement was observed between the Ct-DT RHA and the pmpH LGV PCR (Kappa = 0.900, 95%CI = 0.845-0.955, McNemar's p = 1.000). A concomitant non-LGV genotype was detected in 6/99 (6.1%) LGV samples. No additional LGV infections were observed with the Ct-DT RHA among the non-LGV Ct group. In the non-LGV group genotype G/Ga (34.3%) was seen most frequent, followed by genotype D/Da (22.5%) and genotype J (13.7%). All LGV infections were caused by genotype L2. Concomitant non-LGV genotypes do not lead to missed LGV proctitis diagnosis. The pmpH LGV PCR displayed excellent agreement with the commercially available Ct-DT genotyping RHA test. The genotypes G/Ga, D/Da and J were the most frequent non-LGV Ct strains in MSM. |
doi_str_mv | 10.1186/1471-2334-11-63 |
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Genotype L infections need to be distinguished from non-LGV (genotypes A-K) Ct infections since they require prolonged antibiotic treatment. For this purpose, an in-house developed pmpH based LGV polymerase chain reaction (PCR) test is used at the Amsterdam STI outpatient clinic. We investigated retrospectively the anal Ct genotype distribution, and the frequency of concomitant genotype infections in MSM infected with LGV and non-LGV Ct infections. To detect concomitant Ct genotype infections, the pmpH LGV PCR and genoTyping Reverse Hybridization Assay (Ct-DT RHA) were used. A total of 201 Ct positive rectal swabs from MSM were selected, which were previously diagnosed as either LGV (n = 99) or non-LGV Ct infection (n = 102) according to the algorithm of Ct detection by the commercially available Aptima Combo 2 assay followed by an in-house pmpH LGV PCR. The samples were retested with the commercially available Ct-DT RHA, which differentiates between 14 major genotypes and is able to detect concomitant Ct genotypes. Excellent genotyping agreement was observed between the Ct-DT RHA and the pmpH LGV PCR (Kappa = 0.900, 95%CI = 0.845-0.955, McNemar's p = 1.000). A concomitant non-LGV genotype was detected in 6/99 (6.1%) LGV samples. No additional LGV infections were observed with the Ct-DT RHA among the non-LGV Ct group. In the non-LGV group genotype G/Ga (34.3%) was seen most frequent, followed by genotype D/Da (22.5%) and genotype J (13.7%). All LGV infections were caused by genotype L2. Concomitant non-LGV genotypes do not lead to missed LGV proctitis diagnosis. The pmpH LGV PCR displayed excellent agreement with the commercially available Ct-DT genotyping RHA test. The genotypes G/Ga, D/Da and J were the most frequent non-LGV Ct strains in MSM.</description><identifier>ISSN: 1471-2334</identifier><identifier>EISSN: 1471-2334</identifier><identifier>DOI: 10.1186/1471-2334-11-63</identifier><language>eng</language><publisher>BioMed Central Ltd</publisher><subject>Algorithms ; Ambulatory care facilities ; Antibiotics ; Chlamydia ; Genetic aspects ; Health aspects ; Infection ; Medical research</subject><ispartof>BMC infectious diseases, 2011-03, Vol.11 (1), Article 63</ispartof><rights>COPYRIGHT 2011 BioMed Central Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2623-1cb89eb6038d816e21e3b7d634255ed76393b900ac107b6ab58228fde82f04b83</citedby><cites>FETCH-LOGICAL-c2623-1cb89eb6038d816e21e3b7d634255ed76393b900ac107b6ab58228fde82f04b83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,782,786,866,27931,27932</link.rule.ids></links><search><creatorcontrib>Quint, Koen D</creatorcontrib><creatorcontrib>Bom, Reinier JM</creatorcontrib><creatorcontrib>Quint, Wim GV</creatorcontrib><creatorcontrib>Bruisten, Sylvia M</creatorcontrib><creatorcontrib>van der Loeff, Maarten F Schim</creatorcontrib><creatorcontrib>Morrñ, Servaas A</creatorcontrib><creatorcontrib>de Vries, Henry JC</creatorcontrib><title>Anal infections with concomitant Chlamydia trachomatisgenotypes among men who have sex with men in Amsterdam, the Netherlands</title><title>BMC infectious diseases</title><description>Lymphogranuloma venereum (LGV) proctitis is caused by Chlamydia trachomatis (Ct) genotype L and is endemic among men who have sex with men (MSM) in western society. Genotype L infections need to be distinguished from non-LGV (genotypes A-K) Ct infections since they require prolonged antibiotic treatment. For this purpose, an in-house developed pmpH based LGV polymerase chain reaction (PCR) test is used at the Amsterdam STI outpatient clinic. We investigated retrospectively the anal Ct genotype distribution, and the frequency of concomitant genotype infections in MSM infected with LGV and non-LGV Ct infections. To detect concomitant Ct genotype infections, the pmpH LGV PCR and genoTyping Reverse Hybridization Assay (Ct-DT RHA) were used. A total of 201 Ct positive rectal swabs from MSM were selected, which were previously diagnosed as either LGV (n = 99) or non-LGV Ct infection (n = 102) according to the algorithm of Ct detection by the commercially available Aptima Combo 2 assay followed by an in-house pmpH LGV PCR. The samples were retested with the commercially available Ct-DT RHA, which differentiates between 14 major genotypes and is able to detect concomitant Ct genotypes. Excellent genotyping agreement was observed between the Ct-DT RHA and the pmpH LGV PCR (Kappa = 0.900, 95%CI = 0.845-0.955, McNemar's p = 1.000). A concomitant non-LGV genotype was detected in 6/99 (6.1%) LGV samples. No additional LGV infections were observed with the Ct-DT RHA among the non-LGV Ct group. In the non-LGV group genotype G/Ga (34.3%) was seen most frequent, followed by genotype D/Da (22.5%) and genotype J (13.7%). All LGV infections were caused by genotype L2. Concomitant non-LGV genotypes do not lead to missed LGV proctitis diagnosis. The pmpH LGV PCR displayed excellent agreement with the commercially available Ct-DT genotyping RHA test. The genotypes G/Ga, D/Da and J were the most frequent non-LGV Ct strains in MSM.</description><subject>Algorithms</subject><subject>Ambulatory care facilities</subject><subject>Antibiotics</subject><subject>Chlamydia</subject><subject>Genetic aspects</subject><subject>Health aspects</subject><subject>Infection</subject><subject>Medical research</subject><issn>1471-2334</issn><issn>1471-2334</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqNkUtLxDAUhYso-Fy7DbgSrObRSdPlMPgYEAd8bUOa3k4jTTI00ZlZ-N9tGREHXEgguTl858K9J0lOCb4kRPArkuUkpYxlKSEpZzvJwY-y-6veTw5DeMOY5IIWB8nn2KkWGVeDjsa7gJYmNkh7p701UbmIJk2r7LoyCsVO6cZbFU2Yg_NxvYCAlPVujiw4tGw8atQHoACrTZtBNQ6NbYjQVcpeoNgAeoD-7lrlqnCc7NWqDXDy_R4lLzfXz5O79H52O52M71NNOWUp0aUooOSYiUoQDpQAK_OKs4yORlDlnBWsLDBWmuC85KocCUpFXYGgNc5KwY6Ss03fuWpB9tP6YRZrgpbjjAtRCJKPeuryD6o_FVjTrwRq0-tbhvMtQ89EWMW5eg9BTp8e_8_OXrfZqw2rOx9CB7VcdMaqbi0JlkPYcohTDnH2X8kZ-wJMUJse</recordid><startdate>20110314</startdate><enddate>20110314</enddate><creator>Quint, Koen D</creator><creator>Bom, Reinier JM</creator><creator>Quint, Wim GV</creator><creator>Bruisten, Sylvia M</creator><creator>van der Loeff, Maarten F Schim</creator><creator>Morrñ, Servaas A</creator><creator>de Vries, Henry JC</creator><general>BioMed Central Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>IOV</scope><scope>ISR</scope></search><sort><creationdate>20110314</creationdate><title>Anal infections with concomitant Chlamydia trachomatisgenotypes among men who have sex with men in Amsterdam, the Netherlands</title><author>Quint, Koen D ; Bom, Reinier JM ; Quint, Wim GV ; Bruisten, Sylvia M ; van der Loeff, Maarten F Schim ; Morrñ, Servaas A ; de Vries, Henry JC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2623-1cb89eb6038d816e21e3b7d634255ed76393b900ac107b6ab58228fde82f04b83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Algorithms</topic><topic>Ambulatory care facilities</topic><topic>Antibiotics</topic><topic>Chlamydia</topic><topic>Genetic aspects</topic><topic>Health aspects</topic><topic>Infection</topic><topic>Medical research</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Quint, Koen D</creatorcontrib><creatorcontrib>Bom, Reinier JM</creatorcontrib><creatorcontrib>Quint, Wim GV</creatorcontrib><creatorcontrib>Bruisten, Sylvia M</creatorcontrib><creatorcontrib>van der Loeff, Maarten F Schim</creatorcontrib><creatorcontrib>Morrñ, Servaas A</creatorcontrib><creatorcontrib>de Vries, Henry JC</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Opposing Viewpoints</collection><collection>Gale In Context: Science</collection><jtitle>BMC infectious diseases</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Quint, Koen D</au><au>Bom, Reinier JM</au><au>Quint, Wim GV</au><au>Bruisten, Sylvia M</au><au>van der Loeff, Maarten F Schim</au><au>Morrñ, Servaas A</au><au>de Vries, Henry JC</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anal infections with concomitant Chlamydia trachomatisgenotypes among men who have sex with men in Amsterdam, the Netherlands</atitle><jtitle>BMC infectious diseases</jtitle><date>2011-03-14</date><risdate>2011</risdate><volume>11</volume><issue>1</issue><artnum>63</artnum><issn>1471-2334</issn><eissn>1471-2334</eissn><abstract>Lymphogranuloma venereum (LGV) proctitis is caused by Chlamydia trachomatis (Ct) genotype L and is endemic among men who have sex with men (MSM) in western society. Genotype L infections need to be distinguished from non-LGV (genotypes A-K) Ct infections since they require prolonged antibiotic treatment. For this purpose, an in-house developed pmpH based LGV polymerase chain reaction (PCR) test is used at the Amsterdam STI outpatient clinic. We investigated retrospectively the anal Ct genotype distribution, and the frequency of concomitant genotype infections in MSM infected with LGV and non-LGV Ct infections. To detect concomitant Ct genotype infections, the pmpH LGV PCR and genoTyping Reverse Hybridization Assay (Ct-DT RHA) were used. A total of 201 Ct positive rectal swabs from MSM were selected, which were previously diagnosed as either LGV (n = 99) or non-LGV Ct infection (n = 102) according to the algorithm of Ct detection by the commercially available Aptima Combo 2 assay followed by an in-house pmpH LGV PCR. The samples were retested with the commercially available Ct-DT RHA, which differentiates between 14 major genotypes and is able to detect concomitant Ct genotypes. Excellent genotyping agreement was observed between the Ct-DT RHA and the pmpH LGV PCR (Kappa = 0.900, 95%CI = 0.845-0.955, McNemar's p = 1.000). A concomitant non-LGV genotype was detected in 6/99 (6.1%) LGV samples. No additional LGV infections were observed with the Ct-DT RHA among the non-LGV Ct group. In the non-LGV group genotype G/Ga (34.3%) was seen most frequent, followed by genotype D/Da (22.5%) and genotype J (13.7%). All LGV infections were caused by genotype L2. Concomitant non-LGV genotypes do not lead to missed LGV proctitis diagnosis. The pmpH LGV PCR displayed excellent agreement with the commercially available Ct-DT genotyping RHA test. The genotypes G/Ga, D/Da and J were the most frequent non-LGV Ct strains in MSM.</abstract><pub>BioMed Central Ltd</pub><doi>10.1186/1471-2334-11-63</doi><oa>free_for_read</oa></addata></record> |
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subjects | Algorithms Ambulatory care facilities Antibiotics Chlamydia Genetic aspects Health aspects Infection Medical research |
title | Anal infections with concomitant Chlamydia trachomatisgenotypes among men who have sex with men in Amsterdam, the Netherlands |
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