BVD Monthly Summary Report: monthly update

BVD Report

Phase 5 - Data provided by ScotEID
Since 1st December 2019

More Information

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:


  1. imported cattle from outwith Scotland
  2. untested animals purchased from non-breeding herds
  3. 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. 

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


Certified Negative

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


Screened Negative

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.
Holding Code BVD Category
0 non breeding holding
1 certified negative holdings (CHeCS accredited herds)
2 screened negative holdings
3 not negative holdings
4 BVD positive holdings

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

Further reading