Abstract
Conclusions
Placental transmission of specific immunity to the virus of St. Louis encephalitis has been demonstrated. Mice between 7 and 9 days of age and 13 to 14 days of age born of mothers immunized by the subcutaneous inoculation of active virus show no increased resistance to the virus of St. Louis encephalitis inoculated intracerebrally but are more resistant than control mice of the same age to virus inoculated intraperitoneally.
Get full access to this article
View all access options for this article.