Patja et al. (2000)

Passive surveillance

1.8 million Finnish people who received the MMR vaccine 1982-1996 (3 million doses of MMR vaccine)

Since 1982,the MMR vaccine was administered twice to children—at ages 14-18 months and again at 6 years of age. Other groups include military recruits, health care workers, nursing school students, and 11- to 13-year-old girls who received the vaccine only once. From 1988 to 1993, rubella-seronegative women were vaccinated after delivery.

Peltola et al. (1998)

Passive surveillance

1.8 million Finnish people who received the MMR vaccine 1982-1996 (3 million doses of MMR vaccine)

Since 1982, the MMR vaccine was administered twice to children—at ages 14-18 months and again at 6 years of age. Other groups include military