{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T03:35:45Z","timestamp":1789529745359,"version":"build-2803163510"},"reference-count":30,"publisher":"BMJ","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clin Pathol"],"published-print":{"date-parts":[[2005,6]]},"abstract":"\n Aim:<\/jats:bold>\n A serosurvey was carried out in schoolchildren from a northeastern area of Italy to define the burden of\n Chlamydia pneumoniae<\/jats:italic>\n infection.\n <\/jats:p>\n \n Methods:<\/jats:bold>\n A sample of 649 schoolchildren underwent a simplified version of the International Study of Asthma and Allergies in Childhood questionnaire and IgG and IgA antibodies were investigated using an enzyme immunoassay, followed by a microimmunofluorescence assay in reactive sera.\n <\/jats:p>\n \n Results:<\/jats:bold>\n Of the children examined, 29% and 19.7% had IgG and IgA antibodies, respectively. The IgG prevalence increased with age. No other sociodemographical variable was related to\n C\u00a0pneumoniae<\/jats:italic>\n infection. An association was established between IgA prevalence and previous otitis media.\n <\/jats:p>\n \n Conclusions:<\/jats:bold>\n A mesoendemic (intermediate between high and low endemic level) pattern of\n C\u00a0pneumoniae<\/jats:italic>\n infection is present in schoolchildren from this area and the prevalence rate is related to age. Moreover, this is the first epidemiological evidence of the role of\n C\u00a0pneumoniae<\/jats:italic>\n in otitis.\n <\/jats:p>","DOI":"10.1136\/jcp.2004.024380","type":"journal-article","created":{"date-parts":[[2005,5,25]],"date-time":"2005-05-25T16:08:10Z","timestamp":1117037290000},"page":"617-620","source":"Crossref","is-referenced-by-count":12,"title":["A population based seroepidemiological survey of\n Chlamydia pneumoniae<\/i>\n infections in schoolchildren"],"prefix":"10.1136","volume":"58","author":[{"given":"G","family":"Dal Molin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B","family":"Longo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Not","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A","family":"Poli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C","family":"Campello","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2005,5,25]]},"reference":[{"key":"2025112110253626000_58.6.617.1","first-page":"882","volume":"151","year":"1985","journal-title":"J Infect Dis"},{"key":"2025112110253626000_58.6.617.2","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199408000-00001"},{"key":"2025112110253626000_58.6.617.3","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199706000-00003"},{"key":"2025112110253626000_58.6.617.4","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/25.3.658"},{"key":"2025112110253626000_58.6.617.5","doi-asserted-by":"publisher","DOI":"10.1007\/s15010-002-2143-9"},{"key":"2025112110253626000_58.6.617.6","doi-asserted-by":"publisher","DOI":"10.1080\/003655401750065535"},{"key":"2025112110253626000_58.6.617.7","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.15.1.1-20.2002"},{"key":"2025112110253626000_58.6.617.8","doi-asserted-by":"publisher","DOI":"10.1093\/infdis\/166.3.646"},{"key":"2025112110253626000_58.6.617.9","doi-asserted-by":"publisher","DOI":"10.1086\/514223"},{"key":"2025112110253626000_58.6.617.10","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199806000-00007"},{"key":"2025112110253626000_58.6.617.11","unstructured":"Wang SP, Grayston JT. Population prevalence antibody to Chlamydia pneumoniae, strain TWAR. In: Bowie WR, Caldwell HD, Jones RP, et al, eds. Chlamydia infections. Cambridge: Cambridge University Press, 1990:402\u20135."},{"key":"2025112110253626000_58.6.617.12","doi-asserted-by":"crossref","first-page":"816","DOI":"10.1128\/jcm.29.4.816-818.1991","volume":"29","year":"1991","journal-title":"J Clin Microbiol"},{"key":"2025112110253626000_58.6.617.13","doi-asserted-by":"crossref","first-page":"972","DOI":"10.1097\/00006454-199211110-00014","volume":"11","year":"1992","journal-title":"Pediatr Infect Dis J"},{"key":"2025112110253626000_58.6.617.14","doi-asserted-by":"crossref","first-page":"565","DOI":"10.3109\/00365549309008544","volume":"25","year":"1993","journal-title":"Scand J Infect Dis"},{"key":"2025112110253626000_58.6.617.15","doi-asserted-by":"crossref","first-page":"393","DOI":"10.3109\/00365549409008610","volume":"26","year":"1994","journal-title":"Scand J Infect Dis"},{"key":"2025112110253626000_58.6.617.16","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1136\/jcp.55.2.115","volume":"55","year":"2002","journal-title":"J Clin Pathol"},{"key":"2025112110253626000_58.6.617.17","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1136\/jcp.55.5.355","volume":"55","year":"2002","journal-title":"J Clin Pathol"},{"key":"2025112110253626000_58.6.617.18","doi-asserted-by":"publisher","DOI":"10.1136\/thx.48.12.1261"},{"key":"2025112110253626000_58.6.617.19","first-page":"281","volume":"21","year":"1998","journal-title":"Microbiologica"},{"key":"2025112110253626000_58.6.617.20","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/23.1.176"},{"key":"2025112110253626000_58.6.617.21","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-200208000-00012"},{"key":"2025112110253626000_58.6.617.22","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199811000-00004"},{"key":"2025112110253626000_58.6.617.23","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199902000-00004"},{"key":"2025112110253626000_58.6.617.24","doi-asserted-by":"publisher","DOI":"10.1080\/08035259850157813"},{"key":"2025112110253626000_58.6.617.25","doi-asserted-by":"publisher","DOI":"10.1080\/00365540050164155"},{"key":"2025112110253626000_58.6.617.26","doi-asserted-by":"publisher","DOI":"10.1016\/S1081-1206(10)62760-3"},{"key":"2025112110253626000_58.6.617.27","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2222.1999.00504.x"},{"key":"2025112110253626000_58.6.617.28","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/29.2.280"},{"key":"2025112110253626000_58.6.617.29","doi-asserted-by":"publisher","DOI":"10.1097\/00006454-199709000-00008"},{"key":"2025112110253626000_58.6.617.30","doi-asserted-by":"publisher","DOI":"10.1080\/00365549850160675"}],"container-title":["Journal of Clinical Pathology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/jcp.2004.024380","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,21]],"date-time":"2025-11-21T18:25:44Z","timestamp":1763749544000},"score":1,"resource":{"primary":{"URL":"https:\/\/jcp.bmj.com\/lookup\/doi\/10.1136\/jcp.2004.024380"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005,5,25]]},"references-count":30,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2005,5,25]]},"published-print":{"date-parts":[[2005,6]]}},"alternative-id":["10.1136\/jcp.2004.024380"],"URL":"https:\/\/doi.org\/10.1136\/jcp.2004.024380","relation":{},"ISSN":["0021-9746","1472-4146"],"issn-type":[{"value":"0021-9746","type":"print"},{"value":"1472-4146","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005,5,25]]}}}