English to Russian Medical Medical: Pharmaceuticals

The assay used for the determination of TBE virus-specific IgG antibodies in the clinical studies for *** 0.5 ml is a three-layer ELISA. It is quantified in “Vienna units” (VIE U/ml) using a standard human anti-TBE antiserum. VIE U/ml exceeding 126 are considered positive, values between 63 and 126 VIE U/ml as borderline, values below 63 VIE U/ml as negative.

Возможен ли вариант перевода - ВЕН ЕД/мл? Не нашла ни одного упоминания в сети.