Heartbroken dog owners say their beloved pet fell victim to a mysterious virus as they warn others about the illness.
Duke, a Cavalier King Charles Spaniel, was described as a "lovely" pup who was "everybody's best friend" and a regular at the Consett's Duke of Wellington pub, which his owner Alan Marshall runs.
Julie Cox, also his owner, took Duke for an evening walk on January 9 around an industrial estate.
