{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T19:11:08Z","timestamp":1787771468612,"version":"build-2784847793"},"reference-count":35,"publisher":"Oxford University Press (OUP)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,2,8]]},"abstract":"Abstract<\/jats:title>\n \n Background<\/jats:title>\n Acellular pertussis (aP) vaccines replaced whole-cell pertussis (wP) vaccines for the US childhood primary series in 1997. As women primed with aP vaccines enter childbearing age, protection of infants through tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccination during pregnancy may be impacted.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n Term infants born to women vaccinated with Tdap during pregnancy were included. Geometric mean concentrations (GMCs) of pertussis-specific immunoglobulin G antibodies (international units per milliliter) in cord blood of infants born to women born after 1997 (aP-primed) were compared with those born to women born before 1992 (wP-primed).<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n 253 and 506 infants born to aP- and wP-primed women, respectively, were included. Compared with wP-primed women, aP-primed women were younger, more likely to be Hispanic or non-Hispanic Black, and had lower-birthweight infants (P &lt; .01 for all). Antibodies against pertussis toxin (PT) and filamentous hemagglutinin (FHA) were lower among infants born to aP-primed vs wP-primed women (PT, 17.3 vs 36.4; GMC ratio, .475; 95% confidence interval [CI], .408\u2013.552 and FHA, 104.6 vs 121.4; GMC ratio, 0.861; 95% CI, .776\u2013.958). No differences were observed for anti-fimbriae or anti-pertactin antibodies.<\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n Transplacental anti-pertussis antibody concentrations in infants of women vaccinated with Tdap during pregnancy differed by type of childhood vaccine the women received. Notably, anti-PT antibody levels, considered most important in preventing severe infant disease, were lower in infants born to aP-primed vs wP-primed women. Maternal Tdap vaccination may confer less protection against pertussis in infants born to aP-primed vs those born to wP-primed women.<\/jats:p>\n <\/jats:sec>","DOI":"10.1093\/cid\/ciac432","type":"journal-article","created":{"date-parts":[[2022,6,1]],"date-time":"2022-06-01T08:30:21Z","timestamp":1654072221000},"page":"e1087-e1093","source":"Crossref","is-referenced-by-count":16,"title":["Maternal Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccination During Pregnancy: Impact on Infant Anti-Pertussis Antibody Concentrations by Maternal Pertussis Priming Series"],"prefix":"10.1093","volume":"76","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9873-6195","authenticated-orcid":false,"given":"Fiona P","family":"Havers","sequence":"first","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tami H","family":"Skoff","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcia A","family":"Rench","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Baylor College of Medicine , Houston, Texas , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica","family":"Epperson","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gowrisankar","family":"Rajam","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jarad","family":"Schiffer","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan","family":"Hariri","sequence":"additional","affiliation":[{"name":"Division of Bacterial Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurie S","family":"Swaim","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Baylor College of Medicine , Houston, Texas , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carol J","family":"Baker","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, University of Texas Health Sciences Center at Houston , Houston, Texas , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C Mary","family":"Healy","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Baylor College of Medicine , Houston, Texas , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2022,6,1]]},"reference":[{"key":"2023020817031355900_ciac432-B1","doi-asserted-by":"crossref","first-page":"635","DOI":"10.1542\/peds.2015-1120","article-title":"Sources of infant pertussis infection in the United States","volume":"136","author":"Skoff","year":"2015","journal-title":"Pediatrics"},{"key":"2023020817031355900_ciac432-B2","doi-asserted-by":"crossref","first-page":"990","DOI":"10.1542\/peds.2014-2291","article-title":"First pertussis vaccine dose and prevention of infant mortality","volume":"135","author":"Tiwari","year":"2015","journal-title":"Pediatrics"},{"key":"2023020817031355900_ciac432-B3","first-page":"1424","article-title":"Updated 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