Exam 21: Virulence Factors and Pathogenic Mechanisms of Bacterial Infections

Neisseria meningitidis is the causative agent of meningitis.Which of these accounts for the damage caused by this bacterial infection?

The primary pathogenic effect of increased Shiga toxins within cells is:

Tetanus toxin acts on inhibitory neurons by preventing the release of _________ from the neurons.

Enteropathogenic E.coli may increase nutrient absorption exposure by:

Which cells are destroyed by hemolysins?

A primary pathological feature of a Mycobacterium tuberculosis infection is the appearance of ___________ in the lungs.

An attachment structure which aids in overcoming the charge repulsion between host/microbe cells is:

What directly causes the damage during an active Mycobacterium tuberculosis infection?

Which component of lipopolysaccharide is responsible for inducing a strong inflammatory response?

Type III secretion systems are associated with which of these bacteria? (Select all that apply)

What is the genus of the organism that causes pertussis?

Cattle may serve as a reservoir for E.coli strain O157:H7 because this strain does not cause any disease in cattle.This strain of E.coli can cause a potentially lethal Shiga toxin-mediated hemolytic uremic syndrome (HUS)in humans.Why don't cattle develop HUS?

Where is the diphtheria toxin gene located?

Corynebacterium phage β promotes its host's (and own)survival:

Fimbrial attachments to host cells are associated with which of these bacteria? (Select all that apply)

The paralysis observed in tetanus victims is a result of: (Select all that apply)

What BEST explains recurrent cycling between latent and reactivation tuberculosis conditions in a patient?

Perfringolysin is produced by Clostridium perfringens.What is its mechanism to cause lysis?

Impetigo can be caused by Streptococcus pyogenes.Impetigo is a type of __________ .

What is the primary effect of lipopolysaccharide (LPS)on the host?