| relationships of bovine ephemeral fever epizootics to population immunity and virus variation. | bovine ephemeral fever is an arthropod-borne bovine viral disease caused by infection with bovine ephemeral fever virus which belongs to genus ephemerovirus within the family rhabdoviridae. in this study, serological data and virological information about the disease and the virus, spanning from 2001 to 2013, were employed to analyze the relationships of bovine ephemeral fever epizootics to population immunity and virus variation. national and regional surveillance data indicated that 2 of the 3 ... | 2014 | 25175802 |
| phylogenetic relationships of the g gene sequence of bovine ephemeral fever virus isolated in japan, taiwan and australia. | the g gene encoding the neutralization antigen of bovine ephemeral fever virus (befv) was characterized in order to define the virus's molecular epidemiology in japan and the genetic relationships among the japanese, taiwanese and australian isolates. the nucleotide and amino acid sequences of the gene were highly conserved among the japanese strains, regardless of the year of isolation, and were closely related to the taiwanese strains. by phylogenetic analysis, the japanese and taiwanese strai ... | 2009 | 19201554 |
| invasion of exotic bovine ephemeral fever virus into taiwan in 2013-2014. | bovine ephemeral fever virus is a member of the family rhabdoviridae and bovine ephemeral fever has frequently affected cattle population in taiwan since 1967. during the outbreaks in 2013 and 2014, exotic bovine ephemeral fever viruses were detected by reverse transcription polymerase chain reaction and nucleotide sequencing. sequence comparison showed that the exotic viruses shared 99.0-99.4% nucleotide identities (99.4-100.0% amino acid identities) with chinese viruses and, on the contrary, 9 ... | 2016 | 26711023 |
| epidemiology of bovine ephemeral fever virus infection in taiwan. | sick animals with excessive nasal discharges and protruding tongue as a result of dyspnea were observed in the august of 1996. eight strains of bef virus were isolated from heparinized blood samples of the affected cattle. most of the affected cattle were difficult to be treated and had a poor prognosis. a total of 516 farms in the 9 districts of taiwan were affected in 1996. among a population of 110,247 dairy cattle, 14,993 (13.6%) cattle were found to be clinically ill. during the epidemic, 1 ... | 1998 | 9880933 |
| bovine ephemeral fever in taiwan. | bovine ephemeral fever (bef) is a vector-borne disease of cattle, spanning tropical and subtropical zones of asia, australia, and africa, caused by ephemerovirus of the rhabdoviridae. taiwan has had 3 bef epizootics, occurring in 1989, 1996, and 1999, since the vaccination regimen was initiated in 1984, given once a year in the spring with a single-dose formaldehyde-inactivated vaccine using the 1983 isolate as the seed virus. this study evaluated the 1999 population immunity against bef virus i ... | 2001 | 11724135 |
| bovine ephemeral fever in taiwan (2001-2002). | bovine ephemeral fever (bef), a vector-borne disease of cattle, is caused by the ephemerovirus of the family rhabdoviridae. in the past 40 years, taiwan has had seven bef epizootics, and we have previously reported the first five. this study summarizes the 2001 and 2002 epizootics; conducted case-control serologic studies on 10 herds involved in the 2001 epizootic; determined whether the recent bef viruses have varied significantly; and discusses the relationship between epizootic patterns and p ... | 2005 | 15876792 |