Control of Bovine Viral Diarrhea Virus Infection Without Vaccines

Bitsch, V.; Rønsholt, L.

doi:10.1016/s0749-0720(15)30471-0

Cited by 90 publications

(70 citation statements)

References 5 publications

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“…ELISA is a quite reliable test in terms of sensitivity and specificity on both blood and milk serum samples. ELISA plays a very important role in identifying herds that are free of BVDV and/or those suspected of active infection and identifying the presence of the antibodies that form in response to BVDV (Niskanen et al, 1991, Bitsch andRonsholt, 1995).The use of milk serum samples provides advantages in research because they are easier to obtain and cause less stress on the animals (Beaudeau et al, 2001a). In BVDV control and eradication programs in countries like Switzerland, Denmark and Norway, milk samples are predominantly used in ELISA tests conducted for the purpose of identifying infection and observing uninfected herds (Lindberg and Alenius, 1999).…”

Section: Discussionmentioning

confidence: 99%

“…Besides, the presence of antibodies detectedin tank milk samples with ELISA can demonstrate the existence of BVDV infection and distinguish between infected and uninfected herds (Beaudeau et al, 2001b). Tank milk results not only indicate the presence of infected animals in the herd, but it also shows that there might be PI calves in the herd, and the necessity of conducting individual testing on calves (Bitsch and Ronsholt, 1995).…”

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confidence: 99%

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Prevalence of antibodies to Bovine Viral Diarrhea Virus (BVDV) in blood and milk serum in dairy cattle in Kars district of Turkey

Yılmaz

2016

IJAR

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The purpose of this study was to detect of antibodies against Bovine Viral Diarrhea Virus (BVDV) in blood and milk serum samples. With this aim, a total of 192 blood and milk samples were collected from unvaccinated Holstein cows in Kars district of Turkey. Blood and milk serum samples were tested to determine the presence of antibodies against BVDV by commercial indirect enzyme-linked immunosorbent assay (ELISA). In this study, while 172 of blood serum (89.58%) were found to be positive for the presence of BVDV antibodies, 161 of milk serum samples (83.85%) were positive. In addition, 150 (78.12%) both blood and milk serum samples of same cattle were positive for BVDV antibodies. Only 22 (11.45%) blood serum of cattle was detected positive for BVDV, while only 11 (5.73%) milk serum was seropositive. Data obtained from the study showed the presence of BVDV infection in dairy herds in the Kars region and demonstrate that blood serum and milk serum samples might be consistent with one another in the determination of BVDV seroprevalence.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Prevalence of antibodies to Bovine Viral Diarrhea Virus (BVDV) in blood and milk serum in dairy cattle in Kars district of Turkey

Yılmaz

2016

IJAR

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“…The only method of eliminating the BVDV infection from the herd so far has been the removal of PI animals, which are the main source of the virus (Bitsch, 1995). These animals are rarely encountered.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of bovine viral diarrhea virus infection in bulls in artificial insemination centers in Poland

Polak¹,

Zmudzinski²

1999

Veterinary Microbiology

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“…The first systematic eradication schemes were launched in 1993-1994 in the Shetland Islands, Denmark, Finland, Norway and Sweden (Bitsch et al, 2000;Bitsch and Ronsholt, 1995;Lindberg et al, 2006;Synge et al, 1999). Regional approaches to control the BVD have been undertaken in various countries such as Germany (Gaede et al, 2003;Greiser-Wilke et al, 2003), Italy (Ferrari et al, 1999) and France (Joly et al, 2005;Viet et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

BVD eradication in Switzerland—A new approach

Presi

Heim

2010

Veterinary Microbiology

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Diverse concepts for BVD eradication or control have been applied in several countries with varying success. Results of previous studies conducted in Switzerland have shown that the prevalence of antibody-positive animals is high and that BVDV is wide spread in the country causing serious economic losses. A new approach to eradicate BVD in the cattle population in Switzerland was chosen. It consists in testing the whole Swiss cattle population for virus detection in a short period of time, without initial antibody screening.Identified persistently infected (PI) animals have to be slaughtered, and new herd infections should be avoided by movement restrictions. Ear-notches are collected using special tags for labeling the animals, and are analyzed using ELISA or rtRT-PCR Methods. Confirmatory tests if needed are performed on blood samples using rtRT-PCR.The eradication program is divided in four phases: 1) Pre-pasturing phase: all young bovines going to transhumance in summer have to be negative tested before. 2) Initial phase: all non-tested bovines have to be tested. Movement restrictions are effective at the same time. 3) Calves phase: all new-borne calves have to be tested 4) Surveillance phase: several strategies will be compared using a modeling approach.After the pre-pasture phase already 595'230 animals (37% of the livestock) have been tested within four months. A prevalence of 1.1% of PI's was observed. The average age of infected animals is 403 days compared to 794 days for non-infected animals, with the oldest PI animal being over 11 years old. On average PI animals are slaughtered within 18 days after the last positive result.The pre-pasture phase has shown that sampling and testing a high number of animals in a short time is challenging but possible. The next phase will deal with a double amount of animals in a similar time frame. The coordination between all partners as well as the collaboration of farmers is the key factor for ensuring the success of the program.

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Control of Bovine Viral Diarrhea Virus Infection Without Vaccines

Cited by 90 publications

References 5 publications

Prevalence of antibodies to Bovine Viral Diarrhea Virus (BVDV) in blood and milk serum in dairy cattle in Kars district of Turkey

Prevalence of antibodies to Bovine Viral Diarrhea Virus (BVDV) in blood and milk serum in dairy cattle in Kars district of Turkey

Prevalence of bovine viral diarrhea virus infection in bulls in artificial insemination centers in Poland

BVD eradication in Switzerland—A new approach

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