Purpose: This study was planned to collect evidences of familial pertussis transmission to infants younger than 6 months of age. Understanding the dynamics of transmission of pertussis in families is essential to plan effective prevention strategies that could be integrated in pertussis control.
Methods: The seroprevalence of IgG antibodies to pertussis toxin (PT-IgG) and prolonged cough symptoms were evaluated in parents of 55 infants aged <6 months hospitalized for confirmed pertussis. Parents of 33 infants with lower respiratory tract infection (LRTI) and parents of 57 healthy infants admitted as outpatients for hip ultrasound examination (HE) were enrolled as controls.
Results: Parents of pertussis cases had PT-IgG levels significantly higher as compared to LRTI and HE parents. More than 40 % were compatible as transmitters of pertussis to their babies, since they had a level of PT-IgG ≥ 100 IU/ml, which is considered diagnostic for a recent pertussis episode. Based on serology, the percentage of pertussis cases that had at least one parent as source of infection was 49.1 %. When cough symptoms were taken into account, the percentage of parents putative transmitters of the infection to their infants increased to 56.4 %.
Conclusions: Parents are scarcely aware of the household transmission of pertussis to their newborns. Our study highlights the need to advise parents about the likelihood of transmission to the newborn and to be particularly aware of coughing symptoms in the household. Since infection can be asymptomatic, a serological survey of family members should also be considered.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s15010-016-0943-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
[Issues and recommendations on antibacterial treatment and post-exposure chemoprophylaxis for pertussis].
Zhonghua Yi Xue Za Zhi
January 2025
Department of Infectious Disease,Children's Hospital of Fudan University, National Children's Medical Center (Shanghai), Shanghai 200032, China.
Pertussis is an important public health and clinical issue in China currently. Macrolide resistance in is a serious challenge to prevent and manage pertussis in China. Early, timely and effective antimicrobial therapy plays an important role in alleviating disease, reducing complications and severe diseases, eliminating carriers and reducing secondary transmission, and implementing post-exposure chemoprophylaxis in special scenarios is also necessary to protect individuals at high risk of severe diseases.
View Article and Find Full Text PDFInter-city movement pattern of notifiable infectious diseases in China: a social network analysis.
Lancet Reg Health West Pac
January 2025
State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Science, Beijing, PR China.
Background: Co-existence of efficient transportation networks and geographic imbalance of medical resources greatly facilitated inter-city migration of patients of infectious diseases in China.
Methods: To characterize the migration patterns of major notifiable infectious diseases (NIDs) during 2016-2020 in China, we collected migratory cases, who had illness onset in one city but were diagnosed and reported in another, from the National Notifiable Infectious Disease Reporting System, and conducted a nationwide network analysis of migratory cases of major NIDs at the city (prefecture) level.
Findings: In total, 2,674,892 migratory cases of NIDs were reported in China during 2016-2020.
Learning the fitness dynamics of pathogens from phylogenies.
Nature
January 2025
Department of Genetics, University of Cambridge, Cambridge, UK.
The dynamics of the genetic diversity of pathogens, including the emergence of lineages with increased fitness, is a foundational concept of disease ecology with key public-health implications. However, the identification of such lineages and estimation of associated fitness remain challenging, and is rarely done outside densely sampled systems. Here we present phylowave, a scalable approach that summarizes changes in population composition in phylogenetic trees, enabling the automatic detection of lineages based on shared fitness and evolutionary relationships.
View Article and Find Full Text PDFMucosal vaccination with outer membrane vesicles derived from reduces nasal bacterial colonization after experimental infection.
Front Immunol
December 2024
Laboratorio VacSal, Instituto de Biotecnología y Biología Molecular (IBBM), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CCT-CONICET La Plata, La Plata, Argentina.
Introduction: We previously identified -derived outer membrane vesicles (OMVs) as a promising immunogen for improving pertussis vaccines. In this study, we evaluated the efficacy of our vaccine prototype in immunization strategies aimed at reducing disease transmission by targeting colonization in the upper airways while maintaining protection against severe disease by reducing colonization in the lower respiratory tract.
Methods: We assessed different mucosal administration strategies in a murine model, including homologous mucosal 2-dose prime-boost schedules and heterologous prime-boost strategies combining intramuscular (IM) systemic immunization with mucosal routes (intranasal, IN; or sublingual, SL).
Integrated network pharmacology and brain metabolomics to analyze the mechanism of Dihuang Yinzi intervention in Alzheimer's disease.
Heliyon
March 2024
School of Basic Medicine, Heilongjiang University Of Chinese Medicine, Harbin, 150040, China.
Ethnopharmacological Relevance: Alzheimer's disease (AD) is an incurable neurodegenerative disease that has become one of the most important diseases threatening global public health security. Dihuang Yinzi (DHYZ) is a traditional Chinese medicine that has been widely used for the treatment of AD and has significant therapeutic effects, but its specific mechanism of action is still unclear.The aim of the study is to investigate the specific mechanism of DHYZ in treating AD based on brain metabolomics and network pharmacology.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!