Viruses

Question 1

Obligate Intracellular Parasites

Answer 1

viruses depend on host for survival

Question 2

Virion

Answer 2

complete infective viral particle composed of core DNA/RNA

Question 3

4 Stages of Viral Growth

Answer 3

1. attachment 2. penetration 3. uncoating (caspid) 4. replication (dna/rna)
   then > release and spread!

Question 4

Viruses Spread by:

Answer 4

Blood, Lymph, Nerves

Question 5

Humoral Immunity

Answer 5

b-cells. antibodies: IgA (mucous membranes), IgG + IgM (neutralize in blood)

Question 6

Cell Mediated Immunity

Answer 6

t cells. natural killer cells, lymphokines produced

Question 7

Herpes Virus Family:

Answer 7

simplex, varicella/zoster, epstein barr, Cytomegalovirus (CMV)

Question 8

Herpes Simplex

Answer 8

most frequent oral viral infection.

Primary + Secondary stages

Question 9

Herpetic Whitlow

Answer 9

finger/nails infected with herpes simplex

Question 10

Apthous Ulcers

Answer 10

not viral. confused w herpes.

painful. usually involves non-keratinized tissue

Question 11

Epstein Barr

Answer 11

linked to infectious mononucleosis –

palatal petechiae is an early sign ^

Question 12

Coxsackie Virus

Answer 12

[picornavirus family]
hand, foot, mouth disease.
fecal > oral.
self limiting.

Question 13

Koplik spots

Answer 13

sign of measles, spots on buccal mucosa

Question 14

Hep A

Answer 14

oral > fecal
highly contagious
*pooled gamma globulin injection can prevent disease post exposure!

Question 15

Hep B

Answer 15

blood + bodily fluids.

highest occupational risk

Question 16

Hep C

Answer 16

blood, drugs, sex, tattoo.
underreported, big public health issue.
#1 reason for liver transplants

Question 17

Papilloma / Condyloma / Verruca

Answer 17

HPV
pap is singular, benign tumor
cond is STD, multiple
verruca is common wart