Interferons form cytokine __ system of immunity.

Interferons are

The interferons are

Interferons were discovered by

Interferons are synthesised in response to:

The following are some well-known abbreviations.which have been used in this chapter. Expand each one to its full form: active and passive immunity

what is humoral immunity.

Name two types of immune systems.

What are interferons? Name one disease controlled by them.

Define immunity. Describe different ways to develop immunity. Write two differences between active and passive immunity.