How can Hepatect CP human hepatitis B immunoglobulin affect live vaccines against measles, mumps, rubella and chickenpox?

Hepatect CP human hepatitis B immunoglobulin may reduce live measles, mumps, rubella and chickenpox vaccine efficacy for at least 6 weeks and up to 3 months (measles: up to 1 year); wait 3 months after treatment before live vaccination and check antibody status in measles vaccine recipients.