KROK 1 2018 – Question 6 · KROK (Medicine) · Microbiology, Virology, and Immunology

A patient was brought into the infectional diseases hospital on the 8th day since the disease onset. The patient complains of headache, malaise, and weakness. A sample of blood was taken for the serological test. Widal agglutination test results with blood sample diluted 1:200 and typhoid fever O-diagnosticum were positive. What diagnosis can be made based on the results of this test?

  1. A. Leptospirosis
  2. B. Typhoid fever
  3. C. Tuberculosis
  4. D. Dysentery
  5. E. Cholera
Hint

Ask what the Widal reaction detects and which pathogen supplies the antigen it uses, rather than guessing from the nonspecific symptoms alone.

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