BVD Monthly Summary Report: monthly update October 2023

EPIC, the Animal Health and Welfare Division of Scottish Government, and ScotEID

Phase 5 - Data provided by ScotEID

 Since 1st December 2019 


More Information

  • Previous Reports
  • BVD Terms Explained

    BVD (Bovine Viral Diarrhoea): 

    Bovine Viral Diarrhoea (BVD) is a disease of cattle that causes a wide range of cattle health problems such as abortion, infertility, respiratory and gut disorders among other problems. In 2010 Scotland embarked upon a BVD eradication programme which is successfully reducing the incidence of disease.

    PI (Persistently Infected): 

    PIs shed large amounts of virus throughout their lives and are the main source of infection. BVD testing is crucial in controlling the disease as PIs often appear healthy. Watch the video and learn more about what makes an animal a PI or transiently infected with BVD 

    PI Locator:

    The ScotEID webpage listing holdings (CPH) of all herds that have had BVD virus positive animals, i.e. transiently or persistently infected with BVD in the herd for more than 40 days.

    'Risky’ Animals:


    (i) imported cattle from outwith Scotland,

    (ii) untested animals purchased
    from non-breeding herds,

    (iii) untested animals from a BVD Not Negative herd).

    These animals cannot leave the herd without an individual BVD Negative or Assumed Negative status. and must be BVD virus tested within 40 days of joining the herd. 

  • BVD Herd Status Table

    Category number/

    BVD herd status


    Impact on animal movements to

    other herds or a livestock market

    Note: Individual animal status will override herd status and should be referred to wherever possible



    Keeper is non-breeding (no calves
    registered in past 12 month) or
    has declared that the herd is



    The herd is CHeCS accredited as
    BVD Negative.
    Can move anywhere.
    Testing is optional.



    The herd is Screened Negative,
    either by testing all calves, all
    animals or by check testing young
    Can move anywhere.
    Testing is optional.

    Not Negative

    The herd:
    shows evidence of exposure to
    • status has expired;
    • status was never established;
    • has been downgraded
    Cattle that don’t have an
    individual BVD Negative
    or Assumed Negative status
    must be tested prior to move.



    Herd includes one or more
    persistently infected (PI) animals.
    Cattle that don’t have an
    individual BVD Negative
    or Assumed Negative status
    must be tested prior to move.
  • BVD Holding Category
    Holding CodeBVD Category
    0 non breeding holding
    1 certified negative holdings (CHeCS accredited herds)
    2 screened negative holdings
    3 not negative holdings
    4 BVD positive holdings

  • BVD Individual Status Table
    Category BVD status Movement restrictions Biosecurity
    1 Negative None  

    Beware Trojan cows
    (see section 7)

    Test calves born, conceived prior to arrival  

    2 Negative
    2 Assumed
     3 Not Negative
    (known as ‘risky’)
    Must not move to another herd or market if from a Scottish holding.
    If from a non-Scottish holding it may require BVD testing within 40 days.
    From Non-Scottish: If an animal has been born on an English holding that has been CHeCS accredited for the full lifetime of the animal, it will not require testing, subject to confirmation by the CHeCS provider.
    Any animal born in Northern Ireland since 1st March 2016,will not require testing.
    Isolate from breeding stock and individually test
     4 BVD Positive Cannot move to another herd or market. Can only go directly to an abattoir, or under an APHA license in special circumstances Isolate and retest. Move directly to slaughter
    0 Untested None Individually test

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