Required
A disease status
Clear Range
The Unknown Status
The movement is underway. The required status was never set.
A destination can learn of disease only after animals have already been introduced.
DEMONSTRATION SCENARIO
This is a demonstration scenario. It is not a live demonstration and does not report an executed result.
The situation
Animals are moving between jurisdictions. The disease status the receiving authority needs was never established.
The status field is empty. The movement is being treated as if that emptiness were a clear result.
Why this is hard
Empty is not a negative result, and it is not a second certificate waiting to be reconciled. Searching for a later laboratory result and backfilling it as if it had been known is a different fault.
Defaulting an empty status to healthy should not count as establishing it.
What the operator can see
Gap
Actual
The field is empty
At risk. Movement treated as clear
What V8Y must determine
V8Y must distinguish a required status that was never established from two records that disagree and from a laboratory gate that is merely late, and refuse to treat empty as clear.
What may happen next
The destination detects the introduction only after movement was treated as clear.
What counts as recovery
Not recovery
Success is not a later result written back as if it had been known.
Recovery
Success is that no movement is accepted as clear without a status.
Observed results
No executed results are published for this thread.
What this evaluation would test
- Absence, not disagreement between two files.
- Empty is not negative.
- Hold or flag unknown.
- Not a claim that a certificate was ignored.
These are the conditions the evaluation would test. They are not reported results.
Operational basis
View operational basis and sources
Derived from Michigan and USDA accounts of the 2024 dairy H5N1 introduction: cattle moved interstate from Texas before infection was known. Blocking movement on an empty status is a demonstration rule, not each shipment’s paperwork.
Michigan Department of Agriculture and Rural Development. Bulletin, 29 March 2024, with the 9 June 2024 epi summary. 2024.
Discuss evaluating this situation
Does your environment face a similar problem?
The request keeps this mission and thread. It is not a claim that the demonstration has been validated in your environment.
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