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Equine disease surveillance: quarterly update

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Equine disease surveillance headlines

  • UK contagious equine metritis case considered resolved

  • Summary of UK disease surveillance for April to June 2020

  • Focus on Strangles Awareness Week 2020

Recent disease outbreaks in the UK

Contagious equine metritis

The case of contagious equine metritis confirmed in the UK in April has been resolved

The case of contagious equine metritis (CEM) reported in the equine disease surveillance report for the first quarter of 2020 ( has been resolved. The case, in a warmblood stallion in Fife, Scotland, was the first confirmed case of CEM in the UK since 2012. It was managed using arrangements set out in a pilot industry-organised CEM control protocol introduced in February 2018 (

Restrictions on the affected premises were lifted on 15 July 2020 after samples from the stallion tested negative by culture and PCR.

UK disease surveillance: April to June 2020

Tables A to D in Box 1 summarise the results of laboratory testing for virological, bacteriological, toxicological and parasitological diseases carried out between April and June 2020.

Box 1:

summary of Laboratory testing carried out in the second quarter of 2020

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Table A: Results of virological testing
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Table B: Results of bacteriological testing
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Table C: Results of toxicosis testing
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Table D: Results of parasitology testing

APHA salmonella surveillance

Six samples were submitted this quarter to the APHA and all were positive for Salmonella. From the incidents involving isolates typed by the APHA, the serovars/phagetypes reported were Salmonella Newport (three isolates) and single incidents of Salmonella Typhimurium RDNC, Salmonella Enteritidis PT8 and Salmonella Paratyphi B variant Java. S Typhimurium RDNC is likely to be of wild bird origin and S Enteritidis PT8 can be found in humans and poultry. S Newport is usually associated with badgers and S Paratyphi B variant Java may be associated with contaminated imported feed ingredients.

More information from the APHA about Salmonella in Great Britain can be found in the 2018 Salmonella in livestock surveillance report, available at

Table A includes data relating to equine viral arteritis (EVA), equine infectious anaemia and West Nile virus from the APHA. The sample population for the APHA is different from that for the …

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