Vaccine against polio viruses is an example of

Vaccine against polio virus is an example of active immunity.

The immunity developed in our body due to the vaccination of polio and measles is an example of:

Vaccine against rabies was first developed by

Vaccine against smallpox was developed by :

Who invented Polio vaccines ?

Name the vaccine against typhoid.

Assertion : Interferons are effective against viruses. Reason : Proteins which can be synthesized only by genetic engineering are effective against viruses.