{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:50:03Z","timestamp":1792788603993,"version":"4.5.0"},"reference-count":123,"publisher":"Walter de Gruyter GmbH","issue":"9","funder":[{"DOI":"10.13039\/501100004156","name":"Mahidol University","doi-asserted-by":"publisher","award":["Fundamental Fund: fiscal year 2024 by National Sci"],"award-info":[{"award-number":["Fundamental Fund: fiscal year 2024 by National Sci"]}],"id":[{"id":"10.13039\/501100004156","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009633","name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","doi-asserted-by":"publisher","award":["Contract No. HHSN275201300006C"],"award-info":[{"award-number":["Contract No. HHSN275201300006C"]}],"id":[{"id":"10.13039\/100009633","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Royal Thai College of Obstetricians and Gynaecologists","award":["RTCOG Project (P Chaemsaithong)"],"award-info":[{"award-number":["RTCOG Project (P Chaemsaithong)"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,11,26]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec id=\"j_jpm-2024-0310_abs_001\">\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>\n                      <jats:italic>Streptococcus agalactiae<\/jats:italic>\n                      , or Group B\n                      <jats:italic>Streptococcus<\/jats:italic>\n                      (GBS), is a leading cause of neonatal sepsis. Materno-fetal transmission of the microorganisms present in the lower genital tract\/perineum is considered to be the most frequent mode for acquisition of infection. It has also been proposed that, in a subset of cases, GBS causes acute chorioamnionitis, intraamniotic infection, and fetal\/neonatal sepsis. However, the evidence to support this ascending pathway is derived from microbiologic studies that rely on cultivation methods, which do not have the resolution to determine if the microorganisms causing neonatal sepsis are the same as those found in the amniotic fluid and the vaginal ecosystem.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_jpm-2024-0310_abs_002\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We used whole genome sequencing of the microorganisms isolated from the vagina, amniotic fluid, chorioamniotic membranes, and neonatal blood (four isolates) in a case of early neonatal sepsis. Using hybrid genome assembly, we characterized the genomic features including virulence factors and antimicrobial resistance in four isolates from the same mother, placenta, and newborn.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_jpm-2024-0310_abs_003\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Whole genome sequencing revealed that the microorganisms in the four clinical isolates corresponded to\n                      <jats:italic>S. agalactiae<\/jats:italic>\n                      sequence type 1, clonal complexes 1, and serotype Ib. Comparative genomic analysis illustrated similar DNA sequences of the four genomes.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"j_jpm-2024-0310_abs_004\">\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study presents the first evidence of the genomic similarity of microorganisms in the vaginal ecosystem, the space between the chorioamniotic membranes of the placenta, amniotic fluid, and neonatal blood.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1515\/jpm-2024-0310","type":"journal-article","created":{"date-parts":[[2024,10,15]],"date-time":"2024-10-15T11:23:33Z","timestamp":1728991413000},"page":"977-990","source":"Crossref","is-referenced-by-count":13,"title":["Molecular evidence that GBS early neonatal sepsis results from ascending infection: comparative hybrid genomics analyses show that microorganisms in the vaginal ecosystem, amniotic fluid, chorioamniotic membranes, and neonatal blood are the same"],"prefix":"10.1515","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8757-3554","authenticated-orcid":false,"given":"Pisut","family":"Pongchaikul","sequence":"first","affiliation":[{"name":"Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital Mahidol University , Samut Prakan , Thailand"},{"name":"Integrative Computational BioScience Center , Mahidol University , Nakhon Pathom , Thailand"},{"name":"Institute of Infection, Veterinary and Ecological Sciences , University of Liverpool , Liverpool , UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4448-5121","authenticated-orcid":false,"given":"Roberto","family":"Romero","sequence":"additional","affiliation":[{"name":"Pregnancy Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research , 35040 Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, United States Department of Health and Human Services , Bethesda , Maryland , USA"},{"name":"Department of Obstetrics and Gynecology , University of Michigan , Ann Arbor , MI , USA"},{"name":"Department of Epidemiology and Biostatistics , Michigan State University , East Lansing , MI , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3659-2074","authenticated-orcid":false,"given":"Thidathip","family":"Wongsurawat","sequence":"additional","affiliation":[{"name":"Division of Medical Bioinformatics, Research Department, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1555-401X","authenticated-orcid":false,"given":"Piroon","family":"Jenjaroenpun","sequence":"additional","affiliation":[{"name":"Division of Medical Bioinformatics, Research Department, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0421-0211","authenticated-orcid":false,"given":"Worarat","family":"Kruasuwan","sequence":"additional","affiliation":[{"name":"Division of Medical Bioinformatics, Research Department, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paninee","family":"Mongkolsuk","sequence":"additional","affiliation":[{"name":"Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital Mahidol University , Samut Prakan , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2639-9545","authenticated-orcid":false,"given":"Pornpun","family":"Vivithanaporn","sequence":"additional","affiliation":[{"name":"Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital Mahidol University , Samut Prakan , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0242-0171","authenticated-orcid":false,"given":"Iyarit","family":"Thaipisuttikul","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arunee","family":"Singsaneh","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine , Ramathibodi Hospital, Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jakkrit","family":"Khamphakul","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine , Ramathibodi Hospital, Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3914-1367","authenticated-orcid":false,"given":"Pitak","family":"Santanirand","sequence":"additional","affiliation":[{"name":"Department of Pathology, Faculty of Medicine , Ramathibodi Hospital, Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kanyaphat","family":"Kotchompoo","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine , Ramathibodi Hospital, Mahidol University , Bangkok , Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-5441-6567","authenticated-orcid":false,"given":"Maolee","family":"Bhuwapathanapun","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine , Ramathibodi Hospital, Mahidol University , Bangkok , 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