Immune Response to other Agents of Calves Persistently Infected with Bovine Virus Diarrhoea Virus (BVDV)
نویسندگان
چکیده
منابع مشابه
Five hours to identify immunotolerant cattle, persistently infected with bovine virus diarrhoea virus.
Detection of animals which are persistently-infected with bovine virus diarrhoea virus (BVDV) is of prime importance in the control of pestivirus infections in cattle, as these animals constitute the main reservoir of the virus. Identification of such animals can be readily performed using crude whole blood samples with a sandwich enzyme-linked immunosorbent assay (ELISA) requiring only approxi...
متن کاملTransient elimination of circulating bovine viral diarrhoea virus by colostral antibodies in persistently infected calves: a pitfall for BVDV-eradication programs?
Infections with bovine viral diarrhoea virus (BVDV) cause substantial economic losses to cattle industries. Rapid detection of persistently BVDV infected (PI) calves is of utmost importance for the efficacy of BVDV control programs. Blood and ear skin biopsy samples are conveniently used for early mass screening of newborns. However, little is known about the impact of colostral antibodies on t...
متن کاملSheep persistently infected with Border disease readily transmit virus to calves seronegative to BVD virus.
Bovine viral diarrhea- and Border disease viruses of sheep belong to the highly diverse genus pestivirus of the Flaviviridae. Ruminant pestiviruses may infect a wide range of domestic and wild cloven-hooved mammals (artiodactyla). Due to its economic importance, programs to eradicate bovine viral diarrhea are a high priority in the cattle industry. By contrast, Border disease is not a target of...
متن کاملBovine viral diarrhea virus infection in a dairy herd with high prevalence of persistently infected calves.
A dairy herd including approximately 50 milking cows and 40 heifers and calves was investigated. This herd was detected with high prevalence of calves persistently infected (PI) with bovine viral diarrhea virus (BVDV). Nine PI animals including a milking cow and 8 newborn calves were detected in the herd within 4 months. Prevalence of PI animals in this herd was estimated 7.0% which was very hi...
متن کاملResolving Bovine viral diarrhea virus subtypes from persistently infected U.S. beef calves with complete genome sequence.
Bovine viral diarrhea virus (BVDV) is classified into 2 genotypes, BVDV-1 and BVDV-2, each of which contains distinct subtypes with genetic and antigenic variation. To effectively control BVDV by vaccination, it is important to know which subtypes of the virus are circulating and how their prevalence is changing over time. Accordingly, the purpose of our study was to estimate the current preval...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Veterinaria Scandinavica
سال: 1993
ISSN: 1751-0147
DOI: 10.1186/bf03548195