A vaccine consists of a very weak dose of a specific bacterium or virus. The patient's body develops anti-bodies in defense of the invading microbes. Theseremain active in the body in case of a real infection.
They eliminate the risk of transmitting the disease to the person injected
It does the opposite of making you immune; it puts you at higher risk for developing shingles as your immune system weakens with age. You do need a vaccine.
A DNA vaccine contains DNA from a pathogen but cannot cause disease. When the vaccine is injected into a patient, the DNA directs the synthesis of a protein. Antibodies are produced by the body against the protein. If the patient contracts the disease in the future, the antibodies in his or her body will be able to provide protection.
quarantie the area
Naturally acquired active immunity is the type of resistance that is acquired from developing a disease. Naturally acquired active immunity leaves the person immune from developing the disease again in the future.
When a vaccine is given to an animal, the animal's immune system produces antibodies to fight off the disease. This way, if the animal is ever infected by the disease it was vaccinated against, the animal will either not get sick or not get as sick.
Ideally a person would never contract a disease that he/she has been vaccinated against. The foundation of vaccination is the idea that you expose a person's immune system to the pathogen that causes a disease so that the immune system will recognize it and kill it off quickly if the person is ever exposed again. In reality, some vaccinations just don't work - there are always a few people that don't respond to the vaccine, or that respond weakly and don't have enough memory cells to fight off the pathogen.
The body's immune system uses a system called artificially acquired immunity to train their B-cells to recognize the foreign proteins of a specific pathogen, a bacteria or virus in order to enable the body to fight off the pathogen if the person should ever be exposed to it.
Technically a 'pathogen' IS measels. A pathogen is a fancy name for Bacteria. And a pathogen is a bacteria that IS a certin disease. Hencforth, the answer to your question would be measles IS its own pathogen.
Immunity.
titer
Jonas Salk