In Poland in 1999 rubella was characterized by an epidemiological stability. A total of 30 958 rubella cases (including one case of Congenital Rubella Syndrome) were registered. The incidence rate was 80.1 per 100,000 and was 28% lower than in 1998. Of all reported cases, children aged 14 and less accounted for 94.6% cases. The highest incidence rate was among children aged 7 years (752.8 per 100,000). Comparing with the eighties, the last decade was characterized by a decline of the mean incidence rate in the population under 30 years of age, which was probably the consequence of mandatory vaccinations of 13 year old schoolgirls. Also, a decline of incidence rate among 2-5-year old children was observed, which was probably due to recommended vaccinations with MMR-II vaccine. The incidence rate among children aged 6-9 years was higher in 1999, as compared with previous years. Of all rubella cases, 0.5% were hospitalized. No deaths from rubella were reported.