INFECTION AND IMMUNITY

Question 1

Components of innate immunity:

Answer 1

Epithelial barriers
Inflammation
Antimicrobial peptides
Cytokines
Complement
Phagocytic cell, receptor

Question 2

Cells of innate immunity:

Answer 2

Neutrophils
Monocytes
Eosinophils
Natural killer cells
Macrophages
Mast cells
Dendritic cells

Question 3

Adaptive immunity:

Answer 3

high specificity, slow reaction, quicker upon secondary exposure and develops memory.

Question 4

Cell-mediated immunity

Answer 4

Principal defence against intracellular microbes. Intracellular microbes. Survive and proliferate inside host cells and are inaccessible to circulating antibodies. Mediated by T lymphocytes, destruction of microbes residing inside phagocytes or killing infected cells to eliminate reservoirs of infection. 2 effector responses generated to deal with intracellular pathogens (Tc prod^n and DTH responses)