Yersinia enterocolitica pharyngitis

Insights

Yersinia enterocolitica, a bacterium, can cause pharyngitis (sore throat) in adults, particularly during outbreaks. This finding suggests it may be an overlooked cause of sporadic pharyngitis when other pathogens are absent.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Public Health

Background:

  • Yersinia enterocolitica is a known cause of gastroenteritis, primarily in children.
  • Milk-borne outbreaks of yersiniosis have been documented previously.
  • Pharyngitis is typically associated with viral or streptococcal infections.

Observation:

  • During a multistate milk-borne outbreak, 14 adult patients presented with pharyngitis and fever, but no enteritis.
  • Yersinia enterocolitica was isolated from the throat cultures of these patients.
  • Patients exhibited leukocytosis and elevated serum titers against the outbreak strain.

Findings:

  • Yersinia enterocolitica can manifest as pharyngitis in adults, distinct from its typical gastrointestinal presentation.
  • Adult patients with Y. enterocolitica pharyngitis often present with sore throat and fever, requiring hospitalization in some cases.
  • This bacterial infection may be a cause of sporadic pharyngitis, especially when routine throat cultures are negative for common pathogens.

Implications:

  • Clinicians should consider Yersinia enterocolitica in the differential diagnosis of adult pharyngitis, particularly in outbreak settings or when other causes are ruled out.
  • This expands the known clinical spectrum of Yersinia enterocolitica infections.
  • Further research is warranted to understand the pathogenesis of Y. enterocolitica-induced pharyngitis and its prevalence in sporadic cases.

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