Emerging Viruses

Question 1

West Nile Virus clinical syndromes

Answer 1

Majority subclinical, 1 in 5 fever, 1 in 150 CNS disease

Question 2

Dengue - what does it cause

Answer 2

Uncomplicated dengue fever (“break-bone fever”), complicated dengue hemorrhagic fever (hemorrhagic phenomena progressing to hypovolemic shock)

Question 3

Chikungunya Virus - what does it cause

Answer 3

Presents with fever and arthralgias

Question 4

Zika virus - what does it cause

Answer 4

1 in 5 become symptomatic

Acute onset, fever, maculopapular rash, arthralgia, conjunctivitis, myalgia, headache

Question 5

Zika virus complications

Answer 5

Guillain-Barre Syndrome - ascending paralysis

Congenital Zika virus infection - microcephaly

Question 6

Zika defining feature

Answer 6

Rash

Question 7

Chikungunya defining feature

Answer 7

Arthralgia

Question 8

Dengue defining feature

Answer 8

Hemorrhage, shock

Question 9

Eloba Virus - what does it cause

Answer 9

Hemorrhagic fever

Question 10

Sexually transmitted

Answer 10

Zika virus

Question 11

West Nile virus (classification, reservoir, vector)

Answer 11

Icosahedral, enveloped, flavivirus, ss(+)
Reservoir: blackbirds
Vector: Culex

Question 12

Dengue (classification, vector)

Answer 12

Icosahedral, enveloped, flavivirus, ss(+)

Vector: Aedes

Question 13

Chikungunya virus (classification, vector)

Answer 13

Togavirus, enveloped, togavirus, ss(+)

Vector: Aedes

Question 14

Zika virus (classification, vector)

Answer 14

Icosahedral, enveloped, flavivirus, ss(+)

Vector: Aedes

Question 15

Ebola

Answer 15

Helical, enveloped, filovirus, ss(-)

Question 16

Ebola transmission

Answer 16

Direct contact with blood and body fluids