B. Definitions (pdf)

12.
Interpretation of Isolation Group MV Test Results
 
a.
An Isolation Group is a group of sheep (and lambs if present) that enters the Isolation Facility at one time.
For purposes of this program, these animals should all be tested at the same time and will have the status of the group test result (see below).
 
b.
A Qualifying Isolation Group Test Result is an MV test administered within the same time frame (within 7 days of each other) of all sheep ≥ 180 days of age that are in the Isolation Group. (Appendix 5).
 
c.
A NEGATIVE Qualifying Isolation Group Test Result requires that all test results are NEGATIVE or NEGATIVE and SUSPECT, and that all SUSPECT animals subsequently received a NEGATIVE test if they qualify for re-sampling within 30 days of the test date.
   
i.
If an animal that has received a previous SUSPECT test result, again tests SUSPECT, that animal is considered POSITIVE and must be removed.
     
(1)
The HYPHEN Elitest does not have a SUSPECT category.
   
ii.
If one or more animals fail to receive a NEGATIVE test either initially or on re-sampling, then the Isolation Group test is considered POSITIVE.
 
d.
A POSITIVE Qualifying Isolation Group Test Result occurs when
   
i.
One or more animals has an MV test result of POSITIVE or
   
ii.
One or more animals have an MV test result of SUSPECT when that animal has had a previous SUSPECT result.
     
(1)
The HYPHEN Elitest does not have a SUSPECT category.
   
iii.
In these cases, any animal within the Isolation Group with a NEGATIVE MV test, is considered exposed to a positive animal and requires two NEGATIVE MV test results 8 to 12 weeks apart, in which the entire Isolation Group test is NEGATIVE both times.
13.
Isolation Facility means a facility that sheep are housed in for a specific period of time during which they must have no direct contact with other sheep, shared feeders or watering equipment.
The Isolation Facility must be:

 

a.
Separately ventilated to minimize the risk of aerosol transmission of the MV virus
 
b.
Have no direct  inside communication with the main flock, unless
 
c.
If within the same building, have a solid partition – which may include a lockable door - between the facility and the main flock so there can be no movement of animals or air from the isolation flock to the higher status flock.
 
d.
Inspected and approved by a veterinarian licensed in the province in which the flock resides, or their designated registered veterinary technician (RVT) at the enrollment test.
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