Intracranial calcification with congenital rubella syndrome in a mother with serologic immunity

Kei Numazaki1, Tomoko Fujikawa

  • 1Department of Pediatrics, Sapporo Medical University School of Medicine, Japan. numazaki@sapmed.ac.jp

Insights

This case study details congenital rubella infection in an infant, despite maternal vaccination. The infant exhibited neurological and developmental issues, highlighting the risks of in-utero rubella exposure.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Virology

Background:

  • Congenital rubella syndrome (CRS) can occur even if the mother was vaccinated.
  • Maternal rubella infection during pregnancy poses significant risks to fetal development.

Purpose of the Study:

  • To report a case of congenital rubella infection in an infant born to a vaccinated mother.
  • To document the clinical presentation, diagnostic findings, and outcomes of CRS.

Main Methods:

  • Case report detailing clinical history and physical examination.
  • Neuroimaging (CT and MRI) to assess brain abnormalities.
  • Laboratory tests including rubella serology, IgG and IgM antibody detection, and viral RNA detection.

Main Results:

  • Infant diagnosed with congenital rubella syndrome.
  • Neuroimaging revealed cortical low-density areas and periventricular calcifications.
  • Rubella virus RNA detected in serum, urine, and cerebrospinal fluid.
  • Infant presented with severe hearing loss, mental retardation, and developmental delay.

Conclusions:

  • Congenital rubella infection can occur despite maternal vaccination, emphasizing the need for robust public health surveillance.
  • Early diagnosis and monitoring are crucial for managing the long-term consequences of CRS.
  • This case underscores the importance of maintaining high vaccination rates to prevent rubella outbreaks.

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