| antibodies to berne virus in horses and other animals. | after inoculation into 2 foals, berne virus induced neutralizing antibody, but did not cause clinical symptoms. in a horizontal study of seropositive mares and their offspring, a decline of maternal antibodies and a sudden synchronous seroconversion in all foals were observed, again without clinical symptoms. the virus is widespread in the swiss horse population and has been so during the last decade; rises in antibody titers were noted in 9% of paired sera sampled at random. positive reactions ... | 1984 | 6506447 |