Aim: To assess antigenic composition consistency and serological characteristics of domestic acellular pertussis vaccine.
Materials And Methods: Amount of pertussis toxin, filamentous hemagglutinin, agglutinogens types 1, 2, and 3 in experimental batches of vaccine was measured by enzyme immunoassay. Levels of antibodies to aforementioned antigens as well as to lipopolysaccbaride in serum samples obtained from patients with pertussis and healthy vaccinated children were measured by the same method. The amount of lypopolysaccharide was determined by LAL test.
Results: Studied batches of vaccine were standard on amount of all protein antigens as well as lipopolysaccharide. Spectrum of antibodies to vaccine components in serum samples from patients with pertussis and healthy vaccinated children included antibodies to individual antigens: pertussis toxin, filamentous hemagglutinin, lipopolysaccharide, agglutinogens types 1, 2, and 3.
Conclusion: Developed technology for manufacturing acellular pertussis vaccine allows to consistently produce preparations with standard amount of all components. Vaccine components interact with antibodies to wide spectrum of B. pertussis antigens.
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Vaccine
January 2025
Pediatric Infectious Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Infectious Diseases, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Introduction: The prevalence of anti-pertussis antibodies among infants and children in Iran has not been thoroughly investigated. Given that recommendations for booster vaccines are based on national disease epidemiology, we aimed to evaluate the seroprevalence of pertussis antibodies among infants and children in an Iranian referral hospital.
Materials And Methods: A total of 1012 infants and children were included in the study.
J Infect
January 2025
Bandim Health Project, Research Unit OPEN, Department of Clinical Research, University of Southern Denmark, Odense C, Denmark; Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark.
Objectives: To investigate if receipt of measles-mumps-rubella (MMR) vaccine following the third dose of diphtheria-tetanus-acellular pertussis (DTaP3) is associated with reduced rates of non-targeted infectious disease hospitalisations.
Methods: Register based cohort study following 1,397,027 children born in Denmark, Finland, Norway, and Sweden until 2 years of age. Rates of infectious disease hospitalisations with minimum one overnight stay according to time-varying vaccination status were compared using Cox proportional hazards regression analysis with age as the underlying timescale and including multiple covariates.
Emerg Microbes Infect
December 2025
Department of Immunization and Prevention, Beijing Chaoyang District Center for Disease Control and Prevention, Beijing, People's Republic of China.
Lancet Glob Health
January 2025
Centre for Neonatal and Paediatric Infection and Vaccine Institute, City St George's, University of London, London, UK; Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda; UK Health Security Agency, Salisbury, UK.
Public Health
January 2025
School of Science and Engineering, University of Kurdistan Hewlêr (UKH), Erbil City, Iraq. Electronic address:
Objectives: To develop a customized individual-based electronic immunization registry using the DHIS-2 platform and investigate its effectiveness combined with short message service reminders to decrease the child immunization dropout rate and improve vaccination timeliness in the Duhok Governorate.
Study Design: This was a quasi-experimental study.
Methods: The study included a preliminary pilot assessment examining deficiencies and requirements of the current paper-based immunization system, which informed the development of a tailored electronic immunization registry.
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