A warning has been issued to pet owners after a mystery illness struck down 150 dogs along costal areas.
Hundreds of dogs began to feel ill across Yorkshire last week with cases escalating and spreading to more areas of the country over the last seven days.
Symptoms including diarrhoea and vomiting have been causing pups to fall ill after visiting a number of beaches.
It is thought that the illness was first discovered on beaches across the Yorkshire coast but cases are not being discovered in inland areas, reports Yorkshire Live.
It has resulted in pet owners being urged to avoid certain beaches with many taking to social media to share their concerns.
Veterinary practices have also shared posts on Facebook to warn others.
It would appear the bug is now moving to towns and cities, including Hebden Bridge, York, and Sheffield.
There are currently no reports of the mystery illness reaching Scotland yet.
One person posted on a group in Hebden Bridge saying: "The dog sickness bug is spreading here like wildfire. My dog came down it on Thursday and I had only taken her to school and back!
"The vet said every other dog he has seen has this bug."
She said that her dog was "fine" now but that her mother's dog had now come down with the same illness.
She said: "Just be careful as they don't know what the cause is or how it's spreading."
Another person from Sheffield posted saying that there was a "nasty bug doing the rounds that will knock your dog off its feet".
They added that the virus is "spreading like wildfire and is in most areas" and had caused her dog to vomit and have diarrhoea, which were similar symptoms to the virus reported from the coast.
Emily Storey, from York, warned others about the illness - which she said was "taking longer than normal to recover from" - after her six-month old cockapoo Loki became ill last week.
She said that she had taken him on walks around Copmanthorpe and discovered that other dogs in the area had fallen ill with a similar illness.
She said that he was also vomiting and had diarrhoea and that he was not eating properly. She also said that when she took him to the vets she was told that it "seems to be worse than usual".
In Leeds, a woman was walking her dog at Hunslet canal before it also caught the mystery illness. She said she thinks the virus came from the coast but is now being spread from dog to dog in the city.
But one of the vets at the Minster Veterinary Practice played down the idea that a new illness was affecting canines.
"We often unfortunately get waves of unwell pets with vomiting and diarrhoea around this time of year, just as in the summer we often get cases of kennel cough
"Any cases that have had to be hospitalised due to vomiting and diarrhoea have responded to supportive care. My main advice to any pet owners would be that if your pet is unwell then seek veterinary attention, if we have a mild stomach upset then a bland diet is little and often is a good idea.
"Please be reassured that if we felt that there was something pet owners should avoid or minimise to stop their pet becoming generally unwell then we would advise of this."
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