The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Prevalence of Pertussis Antibodies in Maternal Delivery, Cord, and Infant Serum
Abstract
BACKGROUND: Passively acquired maternal antibodies protect infants from many pathogens. With increasing reports of infant pertussis, we evaluated pertussis antibodies in maternal-infant paired sera from 1999-2000. METHODS: Antibodies to pertussis toxin (PT), filamentous hemagglutinin (FHA), and fimbrial proteins (FIM) were measured by validated IgG-specific enzyme-linked immunosorbant assay (ELISA) in 64 maternal-umbilical cord serum pairs and in 61 of 64 infant sera. Geometric mean concentrations (GMCs) of pertussis antibodies and cord : maternal GMC ratios were calculated. RESULTS: Mean maternal age and gestation were 29.7 years (range, 19-42) and 39.3 weeks (range, 35.6-40.9), and 81% of mothers were white. GMCs of maternal antibodies at delivery (ELISA units/mL) were 2.4 for PT, 6.9 for FHA, and 13 for FIM. Cord GMCs were 169%, 178%, and 157% of maternal delivery values for PT, FHA, and FIM, respectively, demonstrating active placental transfer (P<.001). Pertussis-specific IgG values for each antigen decayed to below the threshold of detection by age 2 months. CONCLUSIONS: Despite efficient placental transfer, low maternal pertussis antibody levels and their rapid decay in infant sera leave infants with little humoral protection against pertussis. These data support the rationale for maternal or neonatal immunization, with acellular pertussis vaccines, to prevent life-threatening pertussis in early infancy.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Deaths from pertussis are underestimated in England
Crowcroft, N. S. (2002) · Archives of Disease in Childhood · doi:10.1136/adc.86.5.336 · Cited by 113
Cited by
Effectiveness of maternal pertussis vaccination in England: an observational study
Amirthalingam, G., Andrews, N., Campbell, H., Ribeiro, S., Kara, E., Donegan, K., Fry, N. K., Miller, E., & Ramsay, M. (2014) · The Lancet · doi:10.1016/s0140-6736(14)60686-3 · Cited by 739
Munoz, F. M., Bond, N. H., Maccato, M., Pinell, P., Hammill, H. A., Swamy, G. K., Walter, E. B., Jackson, L. A., Englund, J. A., Edwards, M. S., et al. (2014) · JAMA · doi:10.1001/jama.2014.3633 · Cited by 489
Self-citationJones, C. E. (2011) · JAMA · doi:10.1001/jama.2011.100 · Cited by 236
Gall, S. A., Myers, J., & Pichichero, M. (2011) · American Journal of Obstetrics and Gynecology · doi:10.1016/j.ajog.2010.11.024 · Cited by 226
van den Berg, J. P., Westerbeek, E. A. M., Berbers, G. A. M., van Gageldonk, P. G. M., van der Klis, F. R. M., & van Elburg, R. M. (2010) · Pediatric Infectious Disease Journal · doi:10.1097/inf.0b013e3181dc4f77 · Cited by 112
Metadata
- Authors
- Healy, C. M., Munoz, F. M., Rench, M. A., Halasa, N. B., Edwards, K. M., & Baker, C. J.
- Venue
- The Journal of Infectious Diseases
- Publisher
- Oxford University Press (OUP)
- Published
- 2004-07-15
- Volume
- 190
- Issue
- 2
- Pages
- 335-340
- ISSN
- 0022-1899 (ISSN-L)
- 1537-6613
- OpenAlex
- W2146261518
- Cited by
- 229
- References
- 1
- FWCI
- 7.09
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Prevalence of Pertussis Antibodies in Maternal Delivery, Cord, and Infant Serum. https://app.cochat.ai/papers/10.1086/421033
- The paper
- Healy, C. M., Munoz, F. M., Rench, M. A., Halasa, N. B., Edwards, K. M., & Baker, C. J. (2004). Prevalence of Pertussis Antibodies in Maternal Delivery, Cord, and Infant Serum. The Journal of Infectious Diseases. https://doi.org/10.1086/421033
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.