Quarterly Surveillance Report Pigs: Vol.10 No.3 April - June 2006 Published August 2006 Contents OVERVIEW (here) NOTIFIABLE DISEASES ZOONOSES & FOOD SAFETY OVERVIEW OF PIG INDUSTRY SCANNING SURVEILLANCE FOR NEW & EMERGING DISEASES HIGHLIGHTS OF ENDEMIC DISEASE PUBLICATIONS

Introduction

The most important facts related to Statutory and Notifiable Diseases and Public Health are displayed first as they are the highest priority. Information related to the Endemic Diseases Project follows these.

Notifiable Viral Diseases

No suspect incidents of swine fever or Aujeszky’s disease were reported that require statutory laboratory investigations. A suspect vesicular disease case at Cheal’s abattoir in Essex where pigs were seen with erosions on their muzzles was very rapidly determined to be negative for SVD, FMD, or VS.

Overview:

• The overall percentage of pig diagnostic submissions for the first 9 months of 2006 (to the third quarter, Q3) where a diagnosis was not reached (DNR) was 21.9% (132/602). This was a significant increase from pooled data to Q3 of prior years for which DNR was 16.6%.
• The DNR rate for the third quarter (Q3) of 2006 (22.5%) was not significantly increased from the previous quarter (Q2, 2006) DNR of 21.4%, or from DNR of 18.4 for equivalent quarters (Q3) in prior years.
• Three submissions were recorded as an unknown syndrome with no diagnosis in Q3, 2006. No significant increase in DNR for unknown syndrome was detected for data to or in Q3, 2006.
• There was a significant increase in DNR for noncarcase submissions for the first three quarters of 2006 to 36.4% (91/250) compared to 23.1% for the same period in prior years. The DNR for carcase submissions for the same period in 2006 was 11.7% which was similar to DNR of 11.3% for carcase submissions in the same period in prior years.
• A statistically significant increase in undiagnosed disease was detected for reproductive syndrome with 67.4% (33/49 submissions) DNR to Q3 2006 compared to 50.5% DNR to Q3 for prior years. There was no significant increase in DNR for reproductive syndrome in Q3 2006 compared with Q3 of prior years.
• A statistically significant increase in undiagnosed disease was detected for systemic and miscellaneous syndrome with 10.9% (24/219 submissions) DNR to Q3 2006 compared to 6.7% DNR to Q3 for prior years. There was no significant increase in DNR for systemic and miscellaneous syndrome in Q3 2006 compared with Q3 of prior years.

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February 2007