The Role of Immunity in Fighting and Checking the Spread of Viral Diseases

Immunology is truly a fascinating discipline that meets the challenge and offers opportunity in fighting and checking the spread of diseases. Many viruses infect humans. The host response to invading virus depends upon the infectious agents and where it is encountered. In response to virus entry there may not be, always, an overt reaction leading to clinical manifestation. There may be simply, subclinical infection, which would protect the individual from later exposure. A number of specific immune effector mechanisms together with non-specific defence mechanism play role in eliminating an infective virus.