Antigenic Variation of Adhesive Pilus Strategy Quiz

10 Questions

Antigenic variation of adhesive pilus is an important virulent strategy for _______

Neisseria gonorrhea

The epidemiological factors that determine the prevalence and incidence of infectious diseases may include all, except___

None of the above

All of the following are pathogens that cause sexually transmitted diseases, except ____

Neisseria meningitidis

The adherence and colonization factors of bacterial pathogens may include _________

All of the abve

All of the following are bacterial virulence factors responsible for immune avoidance, except_

Production of flagella that enables them faster escape

Which of the following bacterial pathogens can survive and replicate within macrophages by inhibiting phagosome-lysosome fusion?

Only a and b

The virulence factors that function for invasiveness and spread from the initial site of infection include _______

a and b

Virulence factors that are involved in the inhibition of phagocytes mobilization include all except, _________

IgA peptidase that facilitates colonization of mucosal surfaces

All of the following bacterial exotoxins are neurotoxins, except_____

Toxic shock syndrome toxin (TSST1)

Which of the following statements accurately describes the origin of endotoxins?

They are components of the outer membrane of Gram-negative bacteria.

Study Notes

Antigenic Variation

Antigenic variation of adhesive pilus is an important virulent strategy for bacteria to evade host immune responses.

Epidemiological Factors

Epidemiological factors that determine the prevalence and incidence of infectious diseases may include all factors, except laboratory diagnosis.

Sexually Transmitted Diseases

All pathogens that cause sexually transmitted diseases, except viruses, are bacterial.

Adherence and Colonization

Adherence and colonization factors of bacterial pathogens may include pili, fimbriae, and capsules.

Immune Avoidance

All bacterial virulence factors responsible for immune avoidance, except IgA protease, facilitate evasion of the host immune system.

Macrophage Survival

Mycobacterium tuberculosis can survive and replicate within macrophages by inhibiting phagosome-lysosome fusion.

Invasiveness and Spread

Virulence factors that function for invasiveness and spread from the initial site of infection include flagella, capsules, and enzymes.

Phagocyte Mobilization

Virulence factors that are involved in the inhibition of phagocyte mobilization include all, except interferon.

Bacterial Exotoxins

All bacterial exotoxins, except enterotoxins, are neurotoxins.

Endotoxins

Endotoxins originate from the outer membrane of Gram-negative bacteria, particularly from the lipopolysaccharide layer.