Interim ICC Report – February 2019 #11 (18.02.19)
Interim ICC Report Feb 19 #11 (18.02.19) – Report from Belgium onf EHV-1 Abortion, France on Strangles, UK on Equine Influenza and USA on Strangles
Equine Herpes Virus-1 (EHV-1) Abortion
On 6 February 2019, EFPB reported a case of EHV-1 abortion on a premises in Namur, Belgium. Positive diagnosis was made by PCR on fetal tissues.
On 18 February 2019, RESPE confirmed two separate cases of strangles. The first case is in Pyrénées-Atlantiques and positive diagnosis was made by PCR on a nasopharyngeal swab by LABEO Frank Duncombe. The second case is in Eure and the positive diagnosis was made by culture on a nasal swab by LABEO Frank Duncombe.
Equine Influenza (EI)
On 15 February 2019, AHT confirmed an outbreak of EI on a premises in Worcestershire. There are a total of 24 non-Thoroughbreds on the premises, of which 16 were confirmed positive by PCR on nasopharyngeal swabs. All horses were sampled three days after the suspect exposure. Multiple outbreaks in this region are thought to be related to mixing of horses at an event such as a hunt meet. There are five horses that are vaccinated in the group, of which three were positive on the day of sampling, two have no clinical signs and one only has mild signs. The other 13 positives are unvaccinated and presented with coughing, nasal discharge and pyrexia, with three of these demonstrating quite severe clinical signs. All are gradually improving. The premises has instigated voluntary movement restrictions.
On 15 February 2019, AHT confirmed a case of EI in an unvaccinated non-Thoroughbred on a premises in Norfolk. The affected horse was imported from Ireland and a day after arrival developed clinical signs of coughing, nasal discharge, pyrexia and lethargy. The positive diagnosis was made by PCR on a nasopharyngeal swab. There are around 25 in-contacts with varying vaccination status and they are not currently reported to be demonstrating any clinical signs. The premises has instigated voluntary movement restrictions.
On 18 February 2019, AHT confirmed a case of EI on a premises in Norfolk. The affected horse was an unvaccinated non-Thoroughbred, recently imported from Ireland. The day after arrival it presented with coughing, nasal discharge and lethargy. Positive diagnosis was confirmed by PCR on a nasopharyngeal swab. The horse has been in isolation since arrival. There is one other vaccinated horse on the premises.
Washington State Department of Agriculture confirmed Strangles on a premises in Chelan County on 15 February. The disease was diagnosed in three horses, a 12 year-old Arabian, a four-year-old Warmblood, and a five-year-old Arabian gelding. An additional 10 horses on the facility are exhibiting characteristic clinical signs of strangles and are presumed to be cases of the disease. Signs of strangles were first noted in the four-year-old Warmblood on 23 December 2018. It and the five-year-old Arabian gelding presented with a submandibular abscess. Both the 12 year-old Arabian and the four-year-old Warmblood are recovering, and the five-year-old Arabian gelding is alive but still clinically affected. A voluntary quarantine has been imposed on the premises.
The Michigan Department of Agriculture and Rural Development confirmed a case of strangles on a premises in Macomb County as of 17 February. The index case, a 13 year-old Haflinger gelding with onset of clinical signs 8 February, presented with fever and a nasal discharge. An additional three horses on the premises have been exposed. No quarantine restrictions have been imposed.
International Collating Centre