Introduction
Anaphylactic shock in dogs occurs when the body overreacts to an allergen of some kind. This allergic reaction can cause devastating consequences to the dog’s health, and lead to death, if it is not treated quickly. The causes of anaphylactic shock in dogs are numerous, and it is not understood why some dogs experience this reaction and others do not.
Causes of Anaphylactic Shock
Vaccinations
The type of anaphylactic reaction that is seen most often in veterinary clinics occurs when a dog, or puppy, has a reaction to a vaccination. Most vaccination reactions are mild and include a slight fever or lethargy, but in some rare instances the dog will experience a strong reaction to the vaccine which results in anaphylactic shock.
Any type of vaccine, including rabies, can potentially cause an anaphylactic reaction. Keep in mind though, that this type of vaccine reaction is extremely rare. There are some breeds of dogs that are at increased risks for allergic reactions to specific types of vaccines.
Allergic Reactions
Severe allergic reactions to medications are another factor which can result in anaphylactic shock in dogs. Just like in people, dogs can experience an allergic reaction to almost any type of medication, including penicillin. Additional causes of anaphylactic shock can include insect stings, venomous bites, and ingredients in foods.
Once a dog experiences anaphylactic shock from a specific allergen, that allergen can continue to cause anaphylactic shock reactions if the dog is exposed to it again. In most cases a dog only has an anaphylactic reaction to one type of allergen; in very rare cases a dog may experience this type of reaction due to multiple types of allergens.