1A rvin AM. V aricella vaccine: genesis, efficacy, and attenuation [J]. V iro logy, 2001,284(2) :153.
2A rgaw T, Cohen J I, Klutch M , et al. N ucleo tide sequences that distinguish Oka vaccine from parental Oka and other varicella 2 zo ster virus iso lates[J ]. Infect Dis, 2000, 181(3) :1153.
