an attenuated vaccine is a vaccine that uses live pathogenic material in connection with inducing immunity. the strength of the organism is weakened or attenuated during processing of the vaccine to make it less likely to cause disease. a number of vaccines, including typhoid, tuberculosis, polio, measles, mumps, rubella and vaccines can be provided in diluted form.
given that attenuated vaccines can sometimes cause disease, one can be reasonably led to wonder why they are used at all when inactive vaccines are available and would presumably be much safer. One of the main reasons to use an attenuated vaccine is that they are more efficient, with some vaccinations not even available in killed form. live vaccines also stimulate a greater immune system, lead to the development of more antibodies and confer more durable immunity. In addition, they are cheaper to produce than killed vaccines, making them interesting for fast mass vaccination efforts.
when someone is vaccinated with an attenuated vaccine, it is not unusual to develop some minor symptoms of illness such as fever, fatigue, or inertia which the body’s immune system reacts. A doctor can discuss common side effects of specific vaccines to patients and their families, and a doctor can also talk about more serious side effects that may occur. As a general rule, the personal and social benefits of vaccination is considered to outweigh the risk, but there are some special circumstances where it might be dangerous for anyone to be vaccinated, so it is essential to provide a complete history of a doctor or nurse before you receive a vaccination or booster.
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