{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T15:16:52Z","timestamp":1791904612484,"version":"4.3.4"},"reference-count":13,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2009,5,15]],"date-time":"2009-05-15T00:00:00Z","timestamp":1242345600000},"content-version":"unspecified","delay-in-days":5523,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["journals.cambridge.org"],"crossmark-restriction":true},"short-container-title":["Epidemiol. Infect."],"published-print":{"date-parts":[[1994,4]]},"abstract":"<jats:title>SUMMARY<\/jats:title><jats:p>Sera from 83 patients with campylobacter gastroenteritis were examined for the presence of legionella antibodies by indirect immunofluorescence. Twenty\u2013one patients (25%) had positive titres (\u2265 16) including 11 patients with titres of \u2265 128. Legionella seropositivity persisted in 5 of 9 patients (55%) studied for 6\u20139 months. Campylobacter isolates were serotyped by the Penner scheme. Isolates associated with legionella seropositivity included Penner types 1, 2 and 4, the common endemic serotypes in England. Campylobacter blocking fluids were prepared from a range of Penner reference strains. The blocking fluid prepared from Penner type 11 was the most efficient at inhibiting the false-positive legionella titres. Using this absorption step legionella titres were inhibited from 24 of 26 patients (92%) with campylobacter but not from 8 patients with cultureproven legionnaires' disease. We recommend that this method is incorporated into routine diagnostic legionella serology in order to eliminate false-positive reactions due to campylobacter.<\/jats:p>","DOI":"10.1017\/s0950268800057757","type":"journal-article","created":{"date-parts":[[2009,5,15]],"date-time":"2009-05-15T08:48:59Z","timestamp":1242377339000},"page":"347-357","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":13,"title":["False positive legionella serology in campylobacter infection: campylobacter serotypes, duration of antibody response and elimination of cross-reactions in the indirect fluorescent antibody test"],"prefix":"10.1017","volume":"112","author":[{"given":"L. E.","family":"Marshall","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. C. J.","family":"Boswell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"Kudesia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2009,5,15]]},"reference":[{"key":"S0950268800057757_ref010","doi-asserted-by":"crossref","first-page":"685","DOI":"10.1128\/JCM.10.5.685-689.1979","article-title":"Measure of immunoglobulin G\u2013, M\u2013, and A\u2013specific titers against Legionella pneumophila and inhibition of titers against non\u2013specific, gram-negative bacterial antigens in the indirect immunofluorescence test for legionellosis","volume":"10","author":"Wilkinson","year":"1979","journal-title":"J Clin Microbiol"},{"key":"S0950268800057757_ref002","first-page":"113","volume-title":"A laboratory manual for legionella","author":"Harrison","year":"1988"},{"key":"S0950268800057757_ref009","doi-asserted-by":"crossref","first-page":"551","DOI":"10.1016\/0140-6736(92)91750-3","article-title":"Cross\u2013reactions between Legionella and Campylobacter spp","volume":"340","author":"Fallon","year":"1992","journal-title":"Lancet"},{"key":"S0950268800057757_ref003","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(92)90268-8"},{"key":"S0950268800057757_ref008","doi-asserted-by":"publisher","DOI":"10.1017\/S0022172400070030"},{"key":"S0950268800057757_ref006","doi-asserted-by":"publisher","DOI":"10.1016\/0140-6736(92)90113-H"},{"key":"S0950268800057757_ref001","doi-asserted-by":"publisher","DOI":"10.7326\/0003-4819-90-4-686"},{"key":"S0950268800057757_ref012","doi-asserted-by":"publisher","DOI":"10.1093\/infdis\/140.5.784"},{"key":"S0950268800057757_ref011","doi-asserted-by":"publisher","DOI":"10.1136\/jcp.35.2.211"},{"key":"S0950268800057757_ref004","doi-asserted-by":"publisher","DOI":"10.1017\/S095026880005024X"},{"key":"S0950268800057757_ref005","doi-asserted-by":"crossref","first-page":"732","DOI":"10.1128\/JCM.12.6.732-737.1980","article-title":"Passive haemagglutination technique for serotyping Campylobacter fetus subsp. jejuni on the basis of soluble heat\u2013stable antigens","volume":"12","author":"Penner","year":"1980","journal-title":"J Clin Microbiol"},{"key":"S0950268800057757_ref007","first-page":"R133","article-title":"The surveillance and control of campylobacter infection","volume":"2","author":"Pearson","year":"1992","journal-title":"CDR Rev"},{"key":"S0950268800057757_ref013","doi-asserted-by":"crossref","first-page":"139","DOI":"10.1128\/JCM.13.1.139-146.1981","article-title":"Validation of Legionella pneumophila indirect immunofluorescence assay with epidemic sera","volume":"13","author":"Wilkinson","year":"1981","journal-title":"J Clin Microbiol"}],"container-title":["Epidemiology and Infection"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0950268800057757","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,5,18]],"date-time":"2020-05-18T05:04:20Z","timestamp":1589778260000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0950268800057757\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,4]]},"references-count":13,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1994,4]]}},"alternative-id":["S0950268800057757"],"URL":"https:\/\/doi.org\/10.1017\/s0950268800057757","relation":{},"ISSN":["0950-2688","1469-4409"],"issn-type":[{"value":"0950-2688","type":"print"},{"value":"1469-4409","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,4]]},"assertion":[{"value":"Cambridge University Press 1994","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}}]}}