id author title date pages extension mime words sentences flesch summary cache txt cord-285329-62yafd2d Tsunemitsu, H. Antigenic and biological comparisons of bovine coronaviruses derived from neonatal calf diarrhea and winter dysentery of adult cattle 1995 .txt text/plain 2453 126 55 The antigenic and biological properties of 6 strains of bovine coronavirus (BCV) derived from neonatal calf diarrhea (CD) and 8 strains of BCV from winter dysentery (WD) of adult cattle, propagated in HRT-18 cells, were compared to determine if CD and WD strains belong to distinct serotypes or subtypes of BCV. However, in virus neutralization tests, antisera to 1 CD and 2 WD strains had 16-fold or lower antibody titers against 3 WD and 1 CD strains than against the homologous strains, and this variation reflected low antigenic relatedness values (R=13–25%), suggesting the presence of different subtypes among BCV. Receptor-destroying enzyme activity with mouse erythrocytes was not UExpressed as the reciprocal of the highest dilution of virus causing complete disappearance of HA patterns at 4 °C after 2 h incubation at 37 °C ° CD Calf diarrhea, WD winter dysentery of adult cattle dM/C Ratio of HA titer with mouse erythrocytes to HA titer with chicken erythrocytes detected for any strain of BCV. ./cache/cord-285329-62yafd2d.txt ./txt/cord-285329-62yafd2d.txt