Ch 32: Viral and Rickettsial Infections

Question 1

Eight identified human herpesviruses (HHV) include

Answer 1

herpes simplex virus (HSV) (type 1)
HSV (type 2)
varicella zoster virus (VZV) (type 3)
Epstein-Barr (EBV) infectious mononucleosis virus (type 4), and 
cytomegalovirus (CMV) (type 5). 
A sixth type (HHV-6) is identified as the causative agent of roseola (exanthema subitum), and 
a seventh (HHV-7) is serologically associated with several syndromes. 
Finally, human herpesvirus 8 (HHV-8) is linked with Kaposi sarcoma (see Chapter 31), primary effusion lymphoma, and some cases of multicentric Castleman disease.

Question 2

What is the most serious of the rickettsial diseases?

Fatality rates can be as high as 73% if left _________.

Answer 2

Rocky Mountain spotted fever

untreated

Question 3

Onset of Rocky Mountain spotted fever is _ to __ days (mean, 7 days) after the bite of an infectious tick; symptoms begin with the abrupt onset of ____ _____, chills, headache, nausea and vomiting, ________, restlessness, insomnia, and irritability.

Answer 3

2 to 14 days
high fever
myalgias