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i.)
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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 waterers. The isolation facility
must be: |
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i.
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Separately
ventilated to minimize the risk of aerosol transmission of the MV
virus. |
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ii.
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Have
no direct inside communication with the main flock |
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iii.
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Or
if within the same barn, have a solid partition 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. |
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iv.
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Inspected
and approved by a veterinarian or their designate AHT at the enrollment
test. |
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TOP |
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j.)
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Biosecurity
Precautions: In order to
minimize the risk of reintroduction of MV-v infection to the flock,
the following biosecurity precautions must be followed or are strongly
recommended as indicated: (A summary is presented Appendix 6.)
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i.
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Surgical
and treatment equipment, (e.g. syringes, dose guns, shearing
equipment) that may become contaminated with blood or saliva must
not be shared between the flock and any sheep housed in an isolation
facility or part of another flock whose status is not "A",
without first being disinfected. |
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Disinfection
of equipment can be done with sodium hypochlorite (6% bleach)
by mixing 1 part bleach to 2 parts water for a final solution
of 2% sodium hypochlorite OR sodium hydroxide by mixing 80 grams
of sodium hydroxide crystals with 1 litre of water to make a 2
molar solution. These agents are effective against most viruses,
bacteria and the scrapie agent. Both can be used for disinfection
of surgical equipment, docking and tattoo equipment, multi-dose
syringes and work surfaces. Minimum contact time should be 10
seconds with the product being rinsed or wiped off after disinfecting.
Chlorhexadine solution or soap is effective for disinfecting shearing
blades. It is effective against the causative agent of caseous
lymphadenitis.
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ii.
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Single-Use
needles |
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(1)
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must
be used when giving injections ( "enrolled" and "Monitored
- Low Risk" flocks) |
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(2)
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or
are strongly recommended ("B" and "A" status flocks). |
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iii.
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All
personnel working with the flock or visiting the flock premises must
wear clean clothing that has not
been in contact with any sheep or goats not of "A" status
(including those in isolation). All protective footwear must be cleaned
and disinfected prior to entering the flock premise (e.g. by vigorous
scrubbing with a disinfectant soap (e.g. tamed Iodine or creosote
based soap) and fresh water). Hands must be washed with a disinfectant
soap (e.g. chlorhexadine soap) prior to handling sheep. |
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iv.
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Sheep
leaving and returning to the flock where there may be contact
with unknown or lower status sheep (e.g. from shows, demonstrations,
sales barns or shared pastures), |
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(1)
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If
from "A" status flocks, they must have two negative MV tests
between 8 and 12 weeks apart prior to returning to the flock |
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(2)
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It
is strongly recommended that if from Status ""Monitored
- Low Risk", Status "B", or "Enrolled" |
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(a)
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That upon return that they are housed in isolation and have two negative
MV tests between 8 and 12 weeks apart prior to returning to the flock. |
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(3)
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On
the next flock test, if random sample, those sheep that have left
the facility regardless of status of the flock they must be tested,
in addition to the random sample. |
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k.)
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Transportation
of Sheep:
|
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i.
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Livestock
handlers must wear clean coveralls and boots. |
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ii.
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All
livestock carriers must be cleaned and disinfected before sheep are
loaded. |
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iii.
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Sheep
from Status "A" flocks must be transported so that: |
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(1)
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There
is no contact with sheep of unknown or lower status. |
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(2)
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They
are not unloaded at any other livestock facility with sheep of unknown
or lower status en route to the new location. |
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iv.
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It
is strongly recommended that all movement of sheep from Status ""Monitored
- Low Risk", Status "B", or "Enrolled" be
done so that: |
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(1)
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There
is no opportunity for contact with other sheep of unknown or lower
status. |
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(2)
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They
are not unloaded at any other livestock facility with sheep of unknown
or lower status en route to the new location. |
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l.)
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Movement
of sheep between OMVFSP flocks: |
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i.
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All
sheep moving between flocks, must be accompanied by an OMVFSP animal
transfer form (Appendix 7). |
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ii.
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Only
sheep from Status "A" flocks can directly enter a Status
"A", "Monitored - Low Risk", "B", or
"Enrolled" flock without testing and an isolation period. |
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iii.
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Sheep
from any other flock other than "A" status, must have two
negative tests 8 to 12 weeks apart while in an isolation facility
prior to entering an OMVFSP flock. |