Questions - Misc

Question 1

What is the most common cause of pink eye (Conjuctivitis)?

Answer 1

Adenovirus

Question 2

What is the most frequent cause of asthma exacerbations?

Answer 2

Rhinovirus

Question 3

Which viruses can cause Reye’s Syndrome:

Answer 3

Varicella Zoster Virus (VZV) (latent)
Adenovirus (latent)
Measles

Question 4

How many serotypes does polio have?

Answer 4

3

Question 5

What is the #1 cause of sporadic lethal encephalitis? And why is it lethal?

Answer 5

Herpes Simplex. Lethal because it is not in the markup.

Question 6

What is the #1 cause of infectious blindness in the US?

Answer 6

Herpes keratitis

Question 7

What is the 2nd most prevalent cause of the common cold?

Answer 7

Coronavirus

Question 8

What virus can cause SARS (Severe Acute Respiratory Syndrome)?

Answer 8

Coronavirus

Question 9

What are capsids and envelopes made out of?

Answer 9

Capsid is made of amino acids (protein)
Envelope (lipid membrane) is glycosylated and is made of host cell membrane and viral proteins. Envelopes are more common in animal viruses.

Question 10

What is the advantage of envelopes of viruses being glycosylated?

Answer 10

It allows them to fly under the radar of our immune system.

Question 11

Which types of viruses have helical and Icosahedral structures?

Answer 11

Human viruses

Question 12

Which types of viruses have rod and cone structures?

Answer 12

Plant viruses

Question 13

Which virus has a complex structure (not helical, icosahedral, rods, cones)?

Answer 13

Pox virus

Question 14

What roles do viral envelope proteins play?

Answer 14

Host cell recognition and binding

Question 15

What fulfills the role of host cell recognition and binding in a naked virus?

Answer 15

The capsid

Question 16

A mutant virus may be referred to as?

Answer 16

Strain
Type (serotype)
Variant

Question 17

What is a strain?

Answer 17

The same virus with minor mutations isolated from different patients, often in different geographical locations

Question 18

What is a type (serotype)?

Answer 18

The same virus with mutations that cause it to respond differently to antibody detection.

Question 19

What is a variant?

Answer 19

The same virus with mutations that give it a different phenotype from wild-type

Question 20

Which are the 5 classic childhood diseases?

Answer 20

Rubella
Measles
Roseola
Chicken pox
Fifth Disease

Question 21

Which virus causes Fifth Disease (dangerous because of chance of profound anemia turning into Aplastic crisis)?

Answer 21

Parvovirus B-19

Question 22

Which virus causes a “slapped cheek” rash?

Answer 22

Parvovirus B-19. Child is infectious when he has a cold, not when he has the slapped cheek rash.

Question 23

Which virus has pearly papule with umbilicate nodules?

Answer 23

Molluscum contagiosum (MC)

Question 24

Which viruses have asymptomatic shedding?

Answer 24

Herpes Simplex 1 and 2
Rotavirus
Poliovirus
Cytomegalovirus
Norovirus
Hepatitis