Interim ICC Report – March 2019 #04 (08.03.19)
Interim ICC Report – March 2019 #04 (08.03.19) – Report from France on Strangles, Equine Influenza & EHV-4, from Germany on Equine Influenza, from Sweden on EHV-1, Equine Influenza & Strangles, EHV-4 and/or Streptococcus zooepidemicus & from USA on EHV
On 7 March 2019, RESPE confirmed two outbreaks of strangles in Calvados. For the first outbreak positive diagnosis was confirmed by culture from purulent discharge and the second by PCR on a nasopharyngeal swab. The second outbreak involved a three-year-old French Trotter mare with clinical signs of, pyrexia, discharge and lymphadenopathy.
On 7 March 2019, RESPE confirmed one case of EI in Orne affecting a vaccinated French Trotter. No clinical signs were reported. Control measures including isolation of the affected animal, quarantine and epidemiological investigation are in place. Positive diagnosis was confirmed by PCR on a nasopharyngeal swab.
Equine Herpes Virus-4 (EHV-4)
On 7 March 2019, RESPE confirmed two outbreaks of EHV-4 one in Landes and the other in Haute Savoie. No clinical signs were available. Positive diagnoses were confirmed by PCR on nasopharyngeal swabs.
On 7 March 2019, Labor Dr. Böse GmbH confirmed a case of EI in an unvaccinated horse on a premises in Schleswig-Holstein. Clinical signs included pyrexia. Positive diagnosis was confirmed by PCR on a nasapharyngeal swab.
Equine Herpes Virus-1 (EHV-1)
On 7 March 2019, the Swedish National Veterinary Institute confirmed a case of EHV-1 in a Swedish horse in Väderstad (Skåne) which had competed in the international horse show in Lilleström, Norway, between 20 – 24 February 2019. The horse presented with fever but not neurological signs on 4 March, 2019, 10 days after a Norwegian horse with the neurological form of EHV-1 had been removed from the competition site. Positive diagnosis was confirmed by qPCR on a nasopharyngeal swab The affected horse is currently bright and alert, with a normal temperature again.
All participants in the competition in Norway immediately received recommendations on infection control, daily health checks and continued isolation at home, in order to minimize the risk of more horses being exposed to the infection. The Swedish horse had been voluntarily isolated since returning home, along with other horses that competed in Norway. The affected horse is now isolated separately, and the premises is under voluntary quarantine.
EHV-1 has also been confirmed in a young horse with pyrexia and respiratory signs in a herd in Västra Götaland on 4 March 2019. The horses had no known contact with other clinically affected horses. The premises is under voluntary quarantine.
Equine Influenza (EI)
On 7 March 2019, the Swedish National Veterinary Institute confirmed a case of EI in a young horse with unclear vaccination status in Simrishamn (Skåne). The horse was transported from Belgium on 3 March 2019, and was sampled when it presented with pyrexia and mild nasal discharge on arrival and was isolated. Transportation from Belgium was provided by the yard’s own vehicle, therefore no other horses were involved in the transportation. Quarantine recommendations have been provided for the facility.
Strangles, EHV-4 and/or Streptococcus zooepidemicus
On 7 March 2019, the Swedish National Veterinary Institute reported that the above infections have been confirmed in several cases of respiratory disease during previous weeks in Sweden. The premises involved are under voluntary quarantine.
Equine Herpes Virus (EHV)
The Washington Department of Agriculture has confirmed a case of EHV infection in an 11-year-old Warmblood gelding that presented with an intermittent fever. Onset of clinical signs was 1 March 2019. The horse is recovering. It has been vaccinated presumably against EHV-1/-4. A voluntary quarantine has been imposed on the premises.
International Collating Centre