There is more than one. Allergy [Strange Malady] is one of them. If we had no curative serums and if there were no such thing as a hypodermic syringe with which to introduce the material under the skin, there would be no serum disease. Subsequent exposure to the protein can result in allergic reactions or anaphylaxis. It is well recognized that many currently approved vaccines have enough allergen to cause anaphylaxis. Therefore, they contain more than enough allergen to cause sensitization.
repeatablility
It all depends on its breed, age, and health I'm sure. I got my puppy at a sanctuary for just 175$. If you are going to buy a dog, make sure he is in good health and that he got his vaccines (vaccines are the most important!)
HE combined his findings with that of other prominent researchers like Frederick Griffith.
The two most important vaccines for veterinary personnel are a current tetanus anti-toxin vaccine and pre-exposure rabies vaccination.
economics
Most live attenuated vaccines (influenza vaccines in humans, infectious bronchitis and Newcastle disease vaccines in chickens are types that activate innate immunity responses.
Actually, vaccine's are very good. For example, the Swine Flu. I had to get a vaccine for the flu, and what the medicine did was protect my body from getting the flu. Vaccines are good for your body. Like i said, it protects your body. =Good :) :) :)
Medicine and vaccines.
vaccines
identification of protozoa
No. Vaccines are not used for treatment. They are used as prevention.
Prevention of infectious diseases when vaccines are available for them. There are vaccines available for many viral and some bacterial contagious diseases.