Question

Mention the source and the role of the following in providing defence against infection in the human body:

Interferons

Answer 1

Source: Interferons are produced by infected cells, primarily by virus-infected cells, as part of the immune response.

Role: Interferons inhibit viral replication by interfering with the ability of viruses to infect healthy cells. They also stimulate the activity of immune cells, such as macrophages and natural killer cells, to attack infected cells.