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Invasive infection from Kingella kingae: Not only arthritis

Garyfallia Syridou1, Panagiota Giannopoulou1, Nikoletta Charalampaki1

  • 1Department of Paediatrics, Thriasio General Hospital, Athens Greece.

Idcases
|April 11, 2020
PubMed

Insights

Kingella kingae rarely causes pneumonia in healthy children. This report details a rare case of invasive Kingella kingae pneumonia and bacteremia in an infant, highlighting diagnostic methods.

Area of Science:

  • Pediatric infectious diseases
  • Microbiology
  • Respiratory infections

Background:

  • Kingella kingae is a recognized cause of osteoarticular infections in children.
  • Invasive infections beyond bone and joint, like pneumonia, are infrequently documented, especially in immunocompetent individuals.

Observation:

  • This case report describes an infant with no prior health issues presenting with bacteremia and lower respiratory tract infection.
  • This represents the first documented instance of such an invasive Kingella kingae infection within the Greek pediatric population.

Findings:

  • The pathogen, Kingella kingae, was successfully identified using both traditional culture methods and advanced molecular techniques.
  • The study confirms Kingella kingae's potential to cause severe, invasive respiratory infections in previously healthy infants.

Implications:

  • This case expands the known clinical spectrum of Kingella kingae infections.
  • It underscores the importance of considering Kingella kingae in the differential diagnosis of invasive infections in pediatric patients, even those who appear immunocompetent.
  • The use of combined diagnostic approaches (culture and molecular) is crucial for accurate pathogen identification.

Keywords:
Kingella bacteremiaKingella kingaeKingella pneumonia

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