Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Privacy Policy  
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Bovine /     
 
Bluetongue virus does not descend from vaccine
In the last weeks it was speculated that the bluetongue virus outbreak in the Netherlands, Belgium and Germany might descend from a virus from a vaccine used in other countries, e.g. in Southern Europe. Now scientists at the Institute for Animal Health`s Pirbright Laboratory have shown that the bluetongue virus causing disease in the Netherlands is serotype 8 - a serotype that has not previously been identified in Europe.

The virus had been sent to IAH Pirbright by the European Commission, as IAH Pirbright is the European Community Reference Laboratory for bluetongue.

After confirming that the disease in the Netherlands was bluetongue, the IAH Pirbright scientists worked to identify the serotype of the virus.

Having eliminated that possibility that the virus was one of the 5 serotypes previously detected in southern Europe (types 1, 2, 4, 9, and 16), they developed tests for the other 19 types.

The identification of the serotype was done by PCR tests late on Friday night (25 Aug). The test involves the gene for protein VP2 of the virus.
VP2 unequivocally specifies the serotype of the virus. The PCR result was confirmed by sequencing most of genome segment 2 of the virus, on Saturday (26 Aug).

Professor Philip Mellor, head of the European Community Reference Laboratory (CRL) for bluetongue said `The isolation of a bluetongue virus serotype new to the region, by Professor Peter Mertens` group at Pirbright,
within only 8 days of receipt of the first infected sheep material from the
Netherlands, is an astonishing feat.`

The quick turn-around time was achieved by using serotype-specific reverse transcriptase polymerase chain reactions (RT-PCRs) followed by sequencing, rather than by virus neutralisation tests that have been used in the past, and which take 3 times longer to achieve a result.

Typing of the virus is important in tracking where the BTV-8 virus came from.

The results show that the Dutch isolate is NOT descended from vaccine forms of the bluetongue virus that have been used in many parts of southern Europe including Bulgaria, Italy, Corsica, Spain, and also in South Africa,
in recent years.

The gene sequence data points to an origin in sub-Saharan Africa.


Source: www.promedmail.org


Tell a friend   |   Print version   |   Send this article

BOVINE

Protecting protein to reduce methane production in ruminantsmembers
Ruminants have a low efficiency of nitrogen (N) utilization that has negative implications for animal production and the environment, but reducing the ruminal degradation of protein can help to reduce N losses. The objective of this study was to evaluate the inclusion of sunflower meal (SM) and sunflower seed (SS) protected against ruminal degradation in high‐cereal diets on in vitro ruminal fermentation and CH4 production.

  • Lifetime prognosis in cattle with necrotic laryngitismembers
  • ECG findings in neonatal calves with diarrhea and associated potassium balance disordersmembers
  • Bacterial translocation in calves with atresia colimembers
  • Optimising lameness detection in dairy cattle members
  • Role of melatonin and its receptors in animal reproductionmembers
  • Physiological changes in inflammatory parameters in cows prae and post partummembers
  • Zinc Deficiency-Like Syndrome in Fleckvieh Calvesmembers
  • Fertility of dairy cows after adding superphosphate to the drinking watermembers
  • Activity of continous releasing oxfendazole capsules against Ostertagia ostertagiimembers
  • Tricho-dento-osseus-like syndrome in a Brown Swiss calfmembers
  • Non-tuberculous Mycobacteria in healthy slaughtered cattle and the abattoir members
  • Subclinical ketosis in dairy cows: prevalence and risk factorsmembers


  • [ Home ] [ About ] [ Contact / Request ] [ Privacy Policy ]

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved