Nowadays, safer vaccines are being produced. - Vidyadip

Question

Nowadays, safer vaccines are being produced.

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Answer

Before the advent of biotechnology, the vaccines were made from inactive or dead pathogens of that disease.
But now the vaccine is made artificially using biotechnological processes.
Such vaccines produced some disease symptoms in some cases.
The antigen of the disease is researched upon and its genetic code is found out.
A similar antigen is made in the laboratories which is used as a vaccine.
Such vaccines are more thermostable and remain active for longer duration. Therefore, the vaccines are now safer.

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