Contagious Equine Metritis (CEM) – Update:
DEFRA in the UK have announced that on the 9th of June 2021 a stallion at an equine premise in West Devon tested positive for Contagious Equine Metritis (CEM). Three mares which had close contact with the infected horse at the same premises are currently under investigation. The source of infection is believed to be contact with a stable mate abroad, before arriving in the UK.
Further information is available from the International Collating Centre (ICC). The affected horse a three year old Arab stallion, was imported to the UK in October 2020 from Europe and has had no clinical signs of infection. The diagnosis was made following targeted investigative testing after it came to light that another linked stallion on a premises in the Netherlands had tested positive for CEM on routine testing. The initial positive diagnosis was made by Axiom Veterinary Laboratories by PCR on penile swabs and this was confirmed on further samples tested at the Animal and Plant Health Agency (APHA) reference laboratory at Penrith by PCR on 8 June 2021; bacterial culture is pending at both laboratories.
The National Disease Control Centre of DAFM has indicated that there are no forward or backward tracing links to Ireland at this stage. DAFM will continue to monitor the situation closely. Compliance with the Code of Practice in relation to CEM prevention is particularly important at this time.
The ICC also reported two outbreaks of CEM in Icelandic horses in Germany this month, both confirmed by Labor Dr Bose GmbH.