VARICELLA VACCINATION IN CHILDREN AFTER BONE-MARROW TRANSPLANTATION

Herpes tester (HZ) is one of the most common complications after bone marrow transplantation (BMT) in children, Apart from treatment with an tiviral drugs, effective prevention by active immunization with varice lla-zoster virus (VZV) appears to be possible, In this study 15 patien ts were vaccinated with a live attenuated VZV vaccine (Varilrix) 12-23 months after BMT. The vaccine was well tolerated without adverse reac tions, Chickenpox or HZ were not observed for up to 2 years after immu nization, Eight out of nine seronegative patients seroconverted and in six virus-specific IgG could still be demonstrated 2 years later, The incidence of VZV diseases in 133 non-immunized children after BMT was 26.3%, Infections usually occurred within 18 months after BMT.