The caterpillar remains in the chrysalis for as little as 2 weeks as the body is transformed into the body of a butterfly. Some species sit over winter, and the butterfly emerâ¦ges in the spring.
immunosuppression noun [U] uk / ËÉªm.jÉ.nÉÊ.sÉËpreÊ. É n / us / ËÉªm.jÉ.noÊ.sÉËpreÊ. É n / specialized âº a situation in which the body's immune system is intentionally stopped from working, or is made less effective, usually by drugs, especially in order to help the body accept an organ that has been taken from another person's body:
A child being immunized against polio. Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an agent (known as the immunogen). When this system is exposed to molecules that are foreign to the body, called non-self, it will orchestrate an immune response, and it will also develop the ability to quickly respond to a subsequent encounter because of immunological memory.