Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Virology 2 > Questions from S 4 > Flashcards

Questions from S 4 Flashcards

1
Q

Actual exam question

How do these viral infections present?

Rift Valley Fever

Eastern Equine Encephalitis

Western Equine Encephalitis

Venezuelan Equine Encephalitis

St Louis Encephalitis

A

Rift Valley Fever - Flu-like illness, visual disturbance due to macula disease, encephalitis, haemorrhagic fever

Eastern Equine Encephalitis - Flu-like illness, encephalitis

Western Equine Encephalitis - Flu-like illness, encephalitis

Venezuelan Equine Encephalitis - Flu-like illness, encephalitis

St Louis Encephalitis - Flu-like illness, encephalitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Actual exam question

What is the case fatality rate of these infections?

Rift Valley Fever

Eastern Equine Encephalitis

Western Equine Encephalitis

Venezuelan Equine Encephalitis

St Louis Encephalitis

A

Rift Valley Fever - 1%. And that is usually the 1% of total cases which end up developing haemorrhagic fever. 90% if <1 year old

Eastern Equine Encephalitis - 40-80 - different reports vary

Western Equine Encephalitis - 10%

Venezuelan Equine Encephalitis - <1%

St Louis Encephalitis - 5-20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which groups of people are most at risk of severe disease from these infections?

Rift Valley Fever

Eastern Equine Encephalitis

Western Equine Encephalitis

Venezuelan Equine Encephalitis

St Louis Encephalitis

A

Exposure to mosquitoes - outdoor workers

Most infections cause very mild asymptomatic disease. Very young or very old seem more prone to developing encephalitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the vectors for these infections

Rift Valley Fever

Eastern Equine Encephalitis

Western Equine Encephalitis

Venezuelan Equine Encephalitis

St Louis Encephalitis

A

All mosquitoes

Rift Valley Fever - Aedes/ Culex

Eastern Equine Encephalitis - Culex

Western Equine Encephalitis - Culex

Venezuelan Equine Encephalitis - Culex

St Louis Encephalitis - Culex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the case fatality rate for these infections?

West Nile Virus

Japanese Encephalitis

Yellow Fever virus

Dengue virus

A

West Nile Virus - 3-15% if encephalitis develops. But <1% develop symptoms

Japanese Encephalitis - 30% if encephalitis develops

Yellow Fever virus - 3%, but 20% if severe complications develop

Dengue virus - <1% with treatment. 25% in severe untreated Dengue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which Bunyaviridae are arboviruses?

A

Rift Valley Fever

Toscana
Sandfly fever - Naples/ Sicilian

Severe fever with Thrombocytopenia virus
CCHF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How are these Bunyaviridae arboviruses transmitted?

Rift Valley Fever

Toscana
Sandfly fever - Naples/ Sicilian

Severe fever with Thrombocytopenia virus
CCHF

A

Culex mosquito
Rift Valley Fever

Sandfly
Toscana
Sandfly fever - Naples/ Sicilian

Hard ticks
Severe fever with Thrombocytopenia virus
CCHF

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which Flaviviridae are arboviruses?

A

Dengue
Zika
Yellow fever
West Nile
St Louis
Japanese Encephalitis
Murrary Valley

Omsk haemorrhagic fever
Kyasanaur Forest disease
Tick borne encephalitis
Powassan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How are these Flaviviridae arboviruses transmitted?

Dengue
Zika
Yellow fever
West Nile
St Louis
Japanese Encephalitis
Murrary Valley
Omsk haemorrhagic fever
Kyasanaur Forest disease
Tick borne encephalitis
Powassan

A

Mosquito Aedes
Dengue
Zika
Yellow fever

Mosquito Culex
West Nile
St Louis
Japanese Encephalitis
Murrary Valley

Hard Tick
Omsk haemorrhagic fever
Kyasanaur Forest disease
Tick borne encephalitis
Powassan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which Togaviridae are arboviruses?

A

Chikungunya
Venezuelan equine encephalitis
Sindbis
Western Equine Encephalitis virus
Eastern Equine Encephalitis virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How are these Togaviridae arboviruses transmitted?

Chikungunya
Venezuelan equine encephalitis
Sindbis
Western Equine Encephalitis virus
Eastern Encephalitis virus

A

Aedes mosquito
Chikungunya

Culex mosqutio
Venezuelan equine encephalitis
Sindbis
Western Equine Encephalitis virus
Eastern Encephalitis virus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is geographic distribution of these viruses?

Western Equine Encephalitis virus
Eastern Equine Encephalitis virus
Venezuelan Equine encephalitis

A

Western Equine Encephalitis virus - North America/ South America

Eastern Equine Encephalitis virus - North America/ South America

Venezuelan Equine encephalitis - Central/ South America

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the primary host of these arboviruses? (not dead end host)

Dengue
JEV
Rift Valley fever
West Nile virus
TBEV
Yellow Fever

A

Dengue - humans/ primates

JEV - pigs/ birds

Rift Valley fever - bats

West Nile virus - birds

TBEV - small rodents

Yellow Fever - primates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the primary host of these arboviruses?

Eastern Equine Encephalitis

Western Equine Encephalitis

Venezuelan Equine Encephalitis

St Louis Encephalitis

A

Birds are main hosts. Horses are dead-end hosts
Eastern Equine Encephalitis
Western Equine Encephalitis
Venezuelan Equine Encephalitis

Birds are main host
St Louis Encephalitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How does West Nile virus present?

A

Flu-like illness

Encephalitis

Acute flaccid paralysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Patient presents with fever, cough, SOB, visual disturbance, and then develops encephalitis

What infection to suspect?

A

Rift Valley Fever -

Flu-like illness
visual disturbance due to macula disease
encephalitis
spontaneous haemorrhage

Virology 2 (57 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions