Disseminated Tularemia: Finding the Needle in the Haystack.

Area of Science:

• Pediatric Infectious Diseases
• Bacteriology
• Immunology

Background:

• Tularemia is a zoonotic bacterial disease caused by Francisella tularensis.
• Disseminated tularemia is rare, particularly in infants, and can present with diverse clinical manifestations.
• Concurrent infections can complicate the diagnosis and management of tularemia.

Observation:

• An 8-month-old infant with no prior health issues developed disseminated tularemia.
• The infant exhibited multisystem organ involvement, an atypical presentation for tularemia.
• A primary cytomegalovirus infection was identified concurrently, complicating the diagnostic process.

Findings:

• Bronchoalveolar lavage culture was crucial for confirming the diagnosis of tularemia.
• Gentamicin was effective in treating the disseminated tularemia in this pediatric case.
• The case underscores the importance of considering tularemia in infants with unexplained febrile illnesses and organ dysfunction.

Implications:

• This case expands the understanding of tularemia's atypical presentations in immunocompetent infants.
• Highlights the diagnostic challenges posed by concurrent infections like cytomegalovirus.
• Emphasizes the efficacy of gentamicin as a treatment option for pediatric disseminated tularemia.