Dog owners are being told to be vigilant for cases of seasonal canine illness which makes animals suddenly very ill.
The Kentford based Animal Health Trust says cases of SCI are usually seen from August to November with dogs vomiting, having diarrhoea and lethargy within 24 to 72 hours of walking in woodland. Dog owners are advised to seek immediate veterinary advice should they see these signs in their dog following a woodland walk.
The AHT has been investigating SCI, which can kill, since the end of 2010 at five sites across Norfolk, Suffolk and Nottinghamshire.
The AHT says dogs visiting woods this autumn should be kept up-to-date with preventive treatments for external parasites because of a possible link with harvest mites.