Initial Surveillance Briefing Scenario
Daily Report – 16 March 2005
Situation
First Infected place detected 28 February 2005:
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Dairy farm near Palmerston North
308 milking cows
Milk production reduced 20% 25th February, 50% by 28th
16 cows with lesions
Oldest lesion estimated to be 4 days old
123 Infected places at 4pm 16 March:
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7 clusters around Palmerston North and Wanganui
Estimate 50-60 new IPs per week for the next 2 weeks
Appear to have reached peak of epidemic1587 farms are under
surveillance, 916 visits due 17 March
Nationwide movement ban remains in place:
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See Controlled Area Notice
Surveillance activity:
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See Surveillance Policy
Initial Surveillance Briefing Scenario, continued
Daily Report – 16 March 2005
Team tasks for 17 March 2005
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Our team will be conducting inspections on farms in the Protection Zone
around IP #119, detected on 17 March
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IP #119 is a dairy farm
o 180 cows, 30 calves
o 10 lesioned calves
o Oldest lesion approximately 3 days old at 17 March
o Received milk from IP # 57 (detected 11 March) on 10 March that
was fed to calves on 11 March
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IP # 119 is in a new area
o First visit for most farmers will be today
o Check details on visit documents
 Names, addresses, telephone numbers
 Animal numbers
 Maps
o Discuss and advise on biosecurity measures to reduce risk
Decide Whether to Escalate Scenarios
Foot and mouth disease - Case definition:
IP
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3 animals with typical clinical disease (vesicles, temperature > 41.0oC): or
SP confirmed with positive laboratory results (VVI, PCR)
SP
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1 or 2 animals with typical clinical disease (vesicles, temperature > 41.0oC): or
1 or more animals with suspicious clinical disease
o to be confirmed by laboratory tests (VVI, PCR)
Case 1 (Typical FMD)
Visit:
 5 cows from a herd of 320 with ruptured vesicles in mouths, lame on four feet,
temperatures 40.2, 40.5, 41.3, 41.3, 41.5. Herd milk production reduced by
~20% yesterday.
Case 2 (Suspicious FMD, lab results required to confirm)
Visit:
 3 ewes in a group of 100, lame all 4 feet, depressed, mouths and feet no obvious
clinically detectable lesions, temperatures 39.8. 40.2, 40.6.
Case 3 (Typical BVD – not FMD)
Visit:
 Group of 12 month old steers ~10% with ulcers in mouth, temperatures 39.0 –
40.5, no lameness. Older cattle in same paddock healthy.