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To identify the source of the infection by investigating
all movements onto the infected premises (IP) for up to 21 days before
the first appearance of clinical signs.
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To limit the spread of disease by tracing all movements
off the IP during the time that virus might have been present on the
farm.
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Tracing to include:
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animals
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animal products including meat
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non-animal products including equipment and vehicles
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milk tankers
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people, especially those with animal contact, e.g.,
vets, inseminators etc.
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