ATTENUATED CHICKEN-POX VIRUS OKA STRAIN GENE 62 AND METHOD FOR IDENTIFYING VIRUS STRAIN FOR ATTENUATED LIVE CHICKEN-POX VACCINE BY USINGTHE GENE

摘要

An attenuated chicken-pox virus Oka strain gene 62 having the base sequence represented by SEQ ID NO: 1 with at least the base substitutions (a) to (d) as specified below; (a) substitution of A at the 2110-position to G; (b) substitution of A at the 3100-position to G; (c) substitution of T at the 3818position to G; and (d) substitution of A at the 4006-position to G; and a method for identifying the attenuated chicken-pox virus Oka strain and an attenuated chicken-pox virus strain acceptable as a virus strain for attenuated live chicken-pox vaccine.