Immunity

Question 1

Lysogeny

Answer 1

Virus DNA gets integrated into host DNA and become a dormant state which can be reactivated later

Question 2

Opsonization

Answer 2

Enhancement of phagocytosis by antibodies or complement proteins

Question 3

Toxoids

Answer 3

Vaccine preparation containing altered toxins or exotoxins secreted by bacteria but retains immunogenicity eg tetanus toxoid

Question 4

Prodromal period of infection

Answer 4

Period when general symptoms of infection occur eg nausea, fever, headache

Question 5

Acme period of infection

Answer 5

Period when specific symptoms occur eg high fever, chills, skin colour changes, swollen lymph nodes, bp changes etc

Question 6

Incubation period

Answer 6

Time between entry of microbe and appearance of symptoms

Question 7

Convalescent period

Answer 7

When body systems return to normal after infection

Question 8

Margination

Answer 8

Leukocytes travel along the endothelium during infection after fluid loss in affected tissue, leaving the blood viscous