Question

Vaccination
A. Develops resistance against the attack of a disease
B. Can control every disease
C. Kills all the disease causing organisms in the area
D. involves the use of antibodies

Answer 1

It trains the body's immune system so that it can fight a disease it has not come into contact with before. Vaccines are designed to prevent disease, rather than treat a disease once we have caught it.

Complete answer:
Vaccination is the administration of a vaccine to help the immune system generate safety from a disease. Vaccines consist of a bacteria or virus in a weak form, live or dead condition, or toxins or proteins from the organism. In encouraging adaptive immunity of the body, they assist in curing or inhibition of illness from contagious diseases.

Now, let us find the solution from the option.
- Vaccination is a technique to develop immunity in individuals without infection. In vaccination, prepared an antigenic protein of pathogens or weakened or dead pathogens are injected into a person who is required to be immune. The pathogens, given in a vaccine are unable to cause a disease but are sufficient to generate the primary immune response.
- All bacterial and viral diseases cannot be prevented by vaccine. Vaccines are not available for some diseases like chikungunya, dengue fever, malaria etc.
- Vaccination does not kill the causing organism in the area but it generates immunity against that disease.
- Vaccine does not involve use of antibodies, instead of antibodies in the preparation of vaccines some antigen protein of pathogen are used.

Thus, the correct option is A. i.e. Develops resistance against the attack of a disease.

Note: When a huge percentage of populations get vaccinated, it causes herd immunity. The efficacy of vaccination has been hugely studied and approved. Vaccination is the most successful procedure of stopping infectious diseases; widely increased immunity occurs due to vaccination which is also the reason for the worldwide suppression of smallpox and the elimination of diseases such as polio and tetanus from the maximum of the world.