Is there a link between rheumatoid factors and typhoid fever? A report on three consecutive cases and literature

Ching-Huei Yang1

  • 1Department of Internal Medicine, Division of Infectious Diseases, Buddhist Tzu Chi General Hospital, Taipei Branch, Taipei, Taiwan. frankchy@tzuchi.com.tw

Insights

Rheumatoid factors, often linked to rheumatoid disorders, can also appear during infections like typhoid fever. This study found one patient with high rheumatoid factors during typhoid, suggesting a controversial but potential connection.

Area of Science:

  • Rheumatology
  • Infectious Diseases
  • Clinical Immunology

Background:

  • Rheumatoid factors (RFs) are typically associated with rheumatoid disorders.
  • The association between RFs and infections, particularly typhoid fever, is rarely documented.
  • Understanding RFs in non-rheumatoid conditions is crucial for accurate diagnosis.

Observation:

  • This report details three consecutive patients diagnosed with typhoid fever.
  • One patient presented with exceptionally high levels of rheumatoid factors.
  • The other two typhoid fever patients tested negative for rheumatoid factors.

Findings:

  • The presence of rheumatoid factors in typhoid fever cases is infrequent.
  • Extremely high RF levels in one patient suggest potential clinical significance.
  • The findings highlight the complex and debated relationship between RFs and typhoid fever.

Implications:

  • The study contributes to the ongoing debate regarding the link between rheumatoid factors and typhoid fever.
  • Further research is needed to clarify the role and significance of RFs in infectious diseases.
  • Clinicians should consider the possibility of RFs in patients with typhoid fever, albeit rarely.

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