| the haemagglutinating activity of berne virus. | berne virus possesses haemagglutinating activity which is inhibited by antisera that neutralize the infectivity of the virus. in decreasing order, human, rabbit and guinea-pig erythrocytes were agglutinated whereas agglutination was not observed with rat, goose, chicken or horse red blood cells. this pattern is different from that seen with the closely related breda virus of cattle. haemagglutinin was found to co-sediment with viral infectivity in sucrose density gradients. transmission electron ... | 1986 | 2431102 |
| 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 |
| bovine torovirus: sequencing of the structural genes and expression of the nucleocapsid protein of breda virus. | breda virus (brv), a member of the genus torovirus, is an established etiological agent of diarrhea of cattle, which is found as two separate serotypes, brv-1 and brv-2. in this study, a 7.5 kb fragment of the brv-1 genome that bracketed the genes for the structural proteins of brv was amplified by long rt-pcr and the amplicon purified and sequenced directly. sequence analysis revealed the presence of four open reading frames (orf) corresponding to the peplomer (s), envelope (m), and nucleocapsi ... | 1998 | 9879765 |