IMMUNOLOGY

MISCELLENOUS

VACCINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements is TRUE about innate immune system?
A
Innate immune system is a slow response.
B
Innate immune system is pathogen-specific.
C
It is activated by the presence of antigen.
D
None of the above
Explanation: 

Detailed explanation-1: -The cells and molecules of innate immunity are rapidly activated by encounter with microbes or other “danger signals.” The rapidity of the response is essential because of the fast doubling time of typical bacteria.

Detailed explanation-2: -The innate immune system includes physical and anatomical barriers as well as effector cells, antimicrobial peptides, soluble mediators, and cell receptors (Table 1). Skin and mucosa provide an effective immune barrier between the internal and external environment.

There is 1 question to complete.