Onion and garlic poisoning results in oxidative damage to the red blood cells (making the red blood cells more likely to rupture) and gastroenteritis (e.g., nausea, oral irritation, drooling, abdominal pain, vomiting, diarrhea).
What breed of dogs have killed more people? The Pit bull has killed the most people, surprisingly, as they are so friendly. The second breed that has killed the most people is the Rottweiler.
Unfortunately, cancer is common in Cocker Spaniels, and is a leading cause of death in this breed. Common cancers include melanoma, basal cell tumors, fibrosarcoma, and anal sac adenocarcinoma. Another handsome gentle giant is the Bernese Mountain Dog.