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Exam questionKROK 1Dentistry ยท 2021

Influenza serology allows detecting the increase of antibody titer against the causative agent in the patient's blood serum. What antibody titer increase must be observed with paired serum samples, for the result to be considered valid?

Answer options

  1. Triple increase
  2. By one titer
  3. Fourfold increase or more
  4. Double increase
  5. By a half-titer
Correct answer

Fourfold increase or more

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