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Related Experiment Videos

[Adenitis following BCG vaccination].

I Claiciu, R Bărbulescu, E Popescu

    Revista De Igiena, Bacteriologie, Virusologie, Parazitologie, Epidemiologie, Pneumoftiziologie. Pneumoftiziologia
    |April 1, 1975
    PubMed
    Summary

    BCG vaccine complications, specifically adenitis, were studied in 167 newborns. Higher virulence BCG vaccine (A) caused more severe adenitis and fistulization than vaccine B, highlighting the need for vaccine testing before mass use.

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    Area of Science:

    • Immunology
    • Pediatrics
    • Vaccinology

    Context:

    • Study of 167 cases of post-vaccinal adenitis following Bacillus Calmette-Guérin (BCG) administration in newborns.
    • Comparison of two BCG vaccines (A and B) from different laboratories based on virulence and germ concentration.

    Purpose:

    • To analyze the incidence, clinical course, and complications of post-vaccinal adenitis.
    • To evaluate the impact of BCG vaccine virulence and dosage on adenitis development.
    • To assess the efficacy of treatments and the relationship between adenitis and post-vaccinal allergy.

    Summary:

    • Higher virulence BCG vaccine (A) led to manifest adenitis and fistulization in 7.79% (0.10 mg dose) and 6.95% (0.05 mg dose), with most cases developing within 6 months.
    • Adenitis often had a prolonged course (78.3%), lasting months to years, with limited response to tuberculostatic treatment (INH).
    • Post-vaccinal allergy was intense and persistent in complicated cases, unlike non-complicated cases where allergy diminished over time.

    Impact:

    • Findings underscore the importance of pre-mass use vaccine testing, especially in infants, to select optimal dosage for maximum efficacy and minimal complications.
    • Highlights the correlation between BCG vaccine virulence and the severity of post-vaccinal adenitis.
    • Provides insights into the long-term course of adenitis and its management, including surgical interventions for abscesses.

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