FMDMost of you will be aware that IP8 was declared yesterday. This is a farm in the POZ that was slaughtered on suspicion after detection during surveillance visits. This has lead to further slight changes in the boundaries of the PZ and SZ. These were early lesions and initial laboratory results confirm this.
The epidemiology of the spread of FMD in the area north of Egham suggests that cattle on 4 premises in the vicinity of IP8 have been exposed to infection either via possible aerosol or fomite spread and are likely to develop disease. These premises will be culled as dangerous contacts.
BLUETONGUEThe various zones for controlling Bluetongue have now been defined. These are difficult to describe because they use roads etc. as boundaries but detailed maps and description of the boundaries are available at:
http://www.defra.gov.uk/animalh/diseases/notifiable/bluetongue/pdf/declaration-bt-pzcz290907.pdf
When farms straddle a road that is a boundary the whole of the farm is classed as being in the zone. It may be possible to put parts of a holding that is outside the zone as a separate unit with consultation with local Animal Health office.
The movement restrictions between the various FMD and BT zones are available at
http://www.defra.gov.uk/animalh/diseases/notifiable/bluetongue/movements/index.htm
Defra are worried that farmers are not reporting cases of BT because they feel there is nothing that can be done so why bother. It is still a notifiable disease and there is a need to monitor spread for various trade implications. There are, of course, likely to be welfare considerations with clinically affected cases. These will need to be addressed with veterinary consultation and may involve symptomatic treatment or euthanasia.
The prevalence of the disease in infected herds/flocks is still low with 1:53 and 1:190 being affected on surveillance.
FMDThere is no change is situation of FMD we still have 7 IPs. The temporary control zone near Maidenhead, Berkshire should be lifted shortly.
Movements between the low risks and the risk areas are allowed using licence 450 but once the animal has entered risk area they cannot leave and become subject to the movement restrictions of the risk area.
BTA fifth cow has proved positive on clinical signs on a new farm in the Ipswich area, however, it is still not possible to show spread within the country. The OIE is to be notified that cases of Bluetongue are occurring but there is still no evidence of transmission from animal to animal through vectors.
Four of the five animals with BT have been diagnosed on classical clinical signs as outlined in various articles.
For completeness all the signs have been in cattle and include:
The European Commission has announced the EU's animal health strategy for 2007-13. The announcement provides the framework for animal health measures over the next 6 years, taking into account feedback from stakeholders and potential challenges in the future.
The overall aim is to put greater focus on precautionary measures, disease surveillance, controls and research, in order to reduce the incidence of animal disease and minimise the impact of outbreaks when they occur. Click here for more ...
Initial laboratory tests on the samples taken this morning from the cattle on the holding in Surrey where disease was suspected have indicated the presence of Foot and Mouth Disease. On the basis of these initial laboratory results and clinical symptoms Debby Reynolds, UK Chief Veterinary Officer (CVO), has confirmed Foot and Mouth Disease. The farm comprises a number of separate parcels of land and a single Protection Zone will be put in place which extends a 3 kilometres radius from each of them, and a Surveillance Zone of 10 kilometres radius beyond that. Footpaths will be closed in the Protection Zone.
Defra has today published reports from the Health and SafetyExecutive and Professor Brian Spratt, of Imperial College London,into the recent outbreak of Foot and Mouth Disease in Surrey. The report is available here.