Sec 31 Viral and Rickettsial Diseases

Question 1

Viruses that require host cellular machinery for replication of their genetic material.

Answer 1

Obligate intracellular parasites.

Question 2

The assembled virus is referred to as

Answer 2

Virion

Question 3

Virus: Macular/Morbilliform

Answer 3

Rubella Echovirus (especially 9, 16) 
Coxsackievirus (especially A5, A9, A16, B5) 
Epstein–Barr virus (infectious mononucleosis) 
Human herpesvirus 6 (roseola) 
Rubeola virus 
Arbovirus (dengue fever) 
Parvovirus B19 (erythema infectiosum) 
Hepatitis B and C viruses 
Human immunodeficiency virus 1

Question 4

Virus: Papular

Answer 4

Human papillomaviruses 
Orf virus 
Human herpesvirus 8 (Kaposi sarcoma) 
Milker’s nodule virus 
Molluscum contagiosum 
Human immunodeficiency virus 1

Question 5

Virus: Patches

Answer 5

Epstein–Barr virus (oral hairy leukoplakia)

Question 6

Virus: Petechial/purpuric

Answer 6

Coxsackieviruses A5, A9 
Hemorrhagic fever viruses 
Rubella virus (congenital infection) 
Cytomegalovirus (congenital infection) 
Echovirus 9 
Epstein–Barr virus

Question 7

Virus: Urticarial

Answer 7

Human immunodeficiency virus 1
Hepatitis B virus
Coxsackieviruses A5, A9
Epstein–Barr virus

Question 8

Virus: Vesicular/vesiculopustular

Answer 8

Varicella zoster virus 
Vaccinia virus 
Variola virus 
Herpes simplex virus types 1 and 2 
Coxsackievirus (hand-foot-andmouth disease) (herpangina) Vesicular stomatitis virus 
Echovirus

Question 9

Traditional diagnostic gold standard for viruses

Answer 9

Viral culture

Question 10

Highly contagious disease with worldwide distribution that remains a leading cause of vaccine-preventable deaths in children

Answer 10

Measles, or rubeola

Question 11

A member of the Paramyxoviridae family, is a heat-labile virus with an RNA core and outer lipoprotein envelope with incubation period of 8–12 days, with patients being contagious from 1 to 2 days before onset of symptoms to 4 days after appearance of the rash.

Answer 11

Measles, or rubeola