Serological diagnostics of influenza requires the measurement of an increase in the titer of antibodies to the pathogen in the patient's blood serum. How many times should the titer of antibodies in the paired serum samples increase for the result to be considered credible?
- A 4 times or more
- B -
- C By half
- D 3 times
- E 2 times
Правильна відповідь: A. 4 times or more
Пояснення
Пояснення буде додано найближчим часом.