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Infant botulism, type F, presenting at 54 hours of life

Corinne A Keet1, Christine K Fox, Marta Margeta

  • 1University of California-San Francisco (UCSF) School of Medicine, 521 Parnassus Avenue, San Francisco, CA 94143-0663, USA.

Pediatric Neurology
|February 26, 2005
PubMed

Insights

This study details the youngest infant botulism case caused by type F neurotoxin, presenting with rapid paralysis and recovery. The unique presentation suggests specific toxin pharmacokinetics, highlighting botulism as a differential diagnosis for neuromuscular weakness.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Toxicology

Background:

  • Infant botulism is typically caused by Clostridium botulinum and presents with descending flaccid paralysis.
  • Type F botulinum neurotoxin is a rare cause of botulism, particularly in infants.

Observation:

  • A 54-hour-old infant presented with fulminant paralysis and rapid spontaneous recovery, atypical for infant botulism.
  • Clostridium baratii and type F botulinum neurotoxin were identified in the infant's stool.
  • Muscle biopsy showed early pathological changes during the disease course.

Findings:

  • This case represents the youngest known infant botulism patient and the third reported instance of type F neurotoxin-induced botulism.
  • The rapid recovery pattern is consistent with the pharmacokinetic properties of type F botulinum neurotoxin.
  • Early muscle biopsy findings provide insights into the disease's pathological progression.

Implications:

  • Botulism, including rare forms like type F, should be considered in the differential diagnosis of acute or subacute neuromuscular weakness in all age groups.
  • Understanding the specific neurotoxin's pharmacokinetics can aid in predicting clinical course and recovery.
  • This case expands the known spectrum of infant botulism presentations and causative agents.

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