FIELD: medicine.
SUBSTANCE: patients' serum 1:100 diluted is introduced into two lines of parallel wells. One line is treated with 6M urea solution for 5 minutes; it is followed by hepatitis A virus IgG antigen-antibody complex avidity test. If the avidity index is 50%, acute viral hepatitis A is diagnosed.
EFFECT: use of the given invention enables diagnosing acute viral hepatitis A in children, especially late one that is extremely important for the purpose of prescribing an adequate therapy and conducting disease control measures.
3 ex
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