UK Pig Disease Quarterly Surveillance Report (to June 2007)
By Veterinary Laboratories Agency - This report monitors trends in the major endemic pig diseases and utilises the farmfile and VIDA (Veterinary Investigation Disease Analysis) databases. The report is compiled using disease data gathered by the network of 15 VLA regional laboratories which carry out disease investigation in the field.
3 September 2007
3 minute read
 April - June 2007 Published August 2007 Contents HIGHLIGHTS (here) NOTIFIABLE DISEASES ZOONOSES & FOOD SAFETY OVERVIEW OF PIG INDUSTRY SCANNING SURVEILLANCE FOR NEW & EMERGING DISEASES HIGHLIGHTS OF ENDEMIC DISEASE PUBLICATIONS |
Highlights
- No notifiable diseases of pigs were recorded in the second quarter of this year.
- No food safety incidents concerning pigs were recorded in the second quarter this year.
- Salmonellosis remains the most significant potential zoonosis. Salmonella submissions and isolations were much reduced this quarter when compared with the same quarter of 2006. Salmonella enterica enterica Typhimurium U288 (75%) predominates with DT193 (25%). Others were not isolated this quarter.
The demand for ZAP visits remains high with 55 visits carried out in this period. 29% from 201 visits were culture positive.
Streptococcus suis type 2 still accounts for many of the isolates serotyped this quarter. No zoonotic incidents were recorded.
VTEC O157 was not found in any of the pig submissions of the enhanced E.coli surveillance.
Highlights of Endemic Disease Surveillance:
Analysis of the submissions without a diagnosis did not indicate the emergence of a novel pig disease during the first quarter of 2007.
No new and emerging diseases or recrudescence of old disease has occurred in pigs. No new strains of avian influenza have been seen and in this second quarter and few isolations of viruses were made.
PRRS and PMWS/PCV2 continue to be the main causes of pig morbidity and mortality. Reproductive failure and myocarditis are still not a large problem with PCV2. The Merial vaccine for sows for PCV2 infections has been granted an import licence by VMD. Hopefully, the other vaccine producers will follow suit. All four vaccines in use in the USA are said to be effective. The continuing use of hybrid or non-Large White pedigree boars continues to maintain the downward trend of reduced PCV2 mortality and morbidity. More and more practitioners are commenting on the success of PCV2 and PMWS control and how production in these clear units is leaping ahead, even without the vaccine with anecdotal stories of 24 pigs/sow/year.
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