A tech entrepreneur has created a personalised cancer vaccine for his dog, a breakthrough experts say could shape the future of human medicine. Sydney man Paul Conyngham adopted his 'best mate' Rosie, an eight-year-old staffy-Shar Pei cross in 2019. In 2024, the canine was diagnosed with mast cell cancer after large tumours started to appear on one of her back legs. Mast cell cancer is the most common skin cancer found in dogs, and often appears as lumps, nodules or masses in the skin. Mr Conyngham spent thousands on veterinary chemotherapy for Rosie, which slowed the spread of the tumours...