Get professional help in 5 minutes
Vaccination is the administration of a vaccine to help the immune system develop immunity from a disease.
Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism. In stimulating the body's adaptive immunity, they help prevent sickness from an infectious disease. When a sufficiently large percentage of a population has been vaccinated, herd immunity results. Herd immunity protects those who may be immunocompromised and cannot get a vaccine because even a weakened version would harm them.
Get an expert to write you the one you need!
Professional writers and researchers
Sources and citation are provided
3 hour delivery