Question

why is it necessary to safely store the pathogens of a disease against which vaccines are to be produced
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Answer 1

Answer:

the complexitiy of pathogens of hazardous pathogens varies for each one and day to day pathways new antigenics component of such pathogens are identified .that was why it is necessary.

Answer 2

Answer:

1. Now-a-days with the advent of biotechnology, the vaccines are manufactured in laboratories with the help of bacteria. For this purpose, a detailed study of the disease- causing germ is undertaken. The genes and the DNA of such microbes are thoroughly explored. Then based on this information, proteins which can act against such microbes are synthetically prepared in the laboratories. The safe vaccine is produced in such a way which can defend the body against infections.
2. Some types of vaccines are prepared from the extracts of germs. These germs or microbes are prepared from the extracts of dormant. When they are injected in the body of a person, they imitate the defending action. The body of such vaccinated person, already develops the antibodies in his or her body. When in future, this person is again attacked by similar germs the defence starts immediately and the person does not become sick.