[Rubella immunity in pregnant women in 1983].

The measurement of diaplacentally transferred specific antibodies in 2153 samples of dried blood of our neonatal screening programme for the detection of inborn errors of metabolism showed that only 4.3% of the children's mothers lacked immunity to rubella in March 1983. This demonstrated a substantial improvement as compared with 1979 and 1982 when 9.3 and 5.3% of the mothers were susceptible to infection with the rubella virus. The reimbursement of serological testing by the legal insurance companies and the vaccination in case of negative results were considered instrumental in reducing the susceptibility to rubella.