29 March 1996

Placenta infection

TRANSMISSION studies have shown placenta from cows confirmed as BSE cases does not contain detectable infectivity when tested in susceptible strains of mice by feeding or inoculation. Cattle challenged with placenta from confirmed cases remain healthy for 71 months after exposure.

lenging them, by a natural route, with placenta from confirmed cases, the surviving challenged animals remain healthy 71 months after exposure.