Ratna

Immunity ◦ Protection from disease (infectious disease)

Immune system ◦ The cells and molecules that responsible for

immunity

Immune response ◦ Collective and coordinated response from

immune system to the introduction of foreign substances

Nonspecific/innate Specific /adaptive

Anatomical barrier◦ Mechanical◦ Chemical ◦ Biological

Humoral barrier◦ Complement◦ Cytokine

Cellular barrier

Humoral Cellular

Innate Adaptive

Specificity

Diversity

Memory

Response time

Response to repeat infection

Components -Humoral -Cellular