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Animal Health Trust |
INTERIM REPORT – February 2011 #3 (11.02.11)
FRANCE
EHV-1 causing paralytic disease
As of 7th February 2011 the Réseau d’Epidémio-Surveillance en Pathologie Equine (RESPE) has reported an outbreak of EHV-1 causing neurological disease in Pas-de-Calais, France. There have been two cases so far on the same premises. The first case was reported on the 2nd February 2011 affecting a 25 year-old male horse that showed ataxia and was diagnosed by PCR on cerebrospinal fluid. The second case was reported on the 4th February 2011 in a mare showing neurological and respiratory signs and was diagnosed by PCR on a nasopharyngeal swab. Both affected horses have been euthanased. The viruses obtained from the two affected horses were typed and both were classified as neuropathogenic strains.
Following the four outbreaks of EHV-1 reported in Val d’Oise on 15th December 2010, the situation as of 10th February is as follows:
Regarding the first outbreak, no further cases have been reported in the last 21 days. Of 100 horses in total on the premises, 68 (68%) presented with pyrexia and 16 (16%) had neurological signs. Of the 16 horses with neurological signs, 9 (56%) showed moderate ataxia, 5 (31%) required treatment for more severe neurological signs and 2 (12.5%) presented with severe neurological signs. One of the 2 horses with severe neurological signs had to be euthanased.
With regards to the second outbreak, no further cases have been reported in the last 21 days. Of 80 horses on the premises, 3 (4%) presented with pyrexia and one (1%) developed severe neurological signs.
Regarding the third outbreak reported, no further cases have been reported in the last 21 days.
These three outbreaks have been declared resolved and therefore restrictions have been lifted.
Finally, regarding the fourth outbreak reported in Val d’Oise, this outbreak is ongoing as of 10th February 2011. Although no further cases have been reported since 26th January there is one affected pony that is still showing neurological signs.
Regards
International Collating Centre