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Congenital malformations and oral poliovirus vaccination during pregnancy
1Department of Pathology, University of Helsinki, Finland.
Lancet (London, England)
|April 8, 1989
Abstract:
In February, 1985, mass vaccination with live oral poliovirus vaccine (OPV) was started during a poliomyelitis outbreak in Finland. Pregnant women were advised to take the vaccination. Judged as the rate of reported malformations, OPV during early pregnancy had no harmful effects on fetal development.