Mothers-to-be suffer most; the prenatal clinic is closed much of the time.

"We charge a bit for our prenatal clinic, but most of them have no money."

It provides health care at some 90 clinics and more than 2,000 prenatal clinics.

The figure to the right shows prevalence at prenatal clinics, which appears to be the best single indicator.

She waited two months for an appointment at a prenatal clinic.

In another province, 8 percent of women attending prenatal clinics carried the virus.

It's running about 50 percent of the women coming into prenatal clinics.

She cried all the way home from the prenatal clinic, but was too afraid to tell anyone for nearly a year.

Parents have been referred by doctors, prenatal clinics and people who come into contact with new Moms.

The women in the study were recruited from a prenatal clinic between May 1983 and July 1985.