DNA VIRUSES PART 2: POXVIRUS Flashcards

(49 cards)

1
Q

Subtype of Small pox which caused the most severe disease with case fatality of 30% and occurred mainly in Asia

A

Variola Major

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2
Q

Pox virus infection that is systemic infection that spreads the virus throughout the body

A

Fulminant

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3
Q

Transmission of smallpox

A

Respiratory droplets

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4
Q

Transmission of molluscum, orf, monkeypox

A

Direct contact

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5
Q

Zoonoses viruses of poxviridae

A

Orf and monkeypox

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6
Q

Intact form of the virion of poxvirus from a vesical fluid specimen

A

Mulberry form

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7
Q

Damaged form of the virion of poxvirus from a scalp specimen

A

Capsule form

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8
Q

Give the code of the anti viral tx: Brimcidofovir/Tembexa

A

CMX001

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9
Q

Give the code of the antiviral tx: Tecovirimat/Tpoxx

A

ST246

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10
Q

Incubation period of variola virus

A

10-17 days

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11
Q

Lesions are present in greater concentration on the head and limbs including the palms and soles

A

Centrifugal distribution

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12
Q

Rash: small, round changes in skin color

A

Macules

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13
Q

Rash: slightly elevated with no fluid

A

Papules

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14
Q

Rash: containing a bubble of fluid

A

Vesicles

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15
Q

Rash: containing a purulent material consisting of necrotic inflammatory cells

A

Pustules

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16
Q

Vaccines for Variola virus

A

ACAM2000, ARSV (Aventis Pasteur Smallpox Vaccine)

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17
Q

Patients with Variola virus are infectious after the _ has appeared

A

Rash

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18
Q

Rash appears in

A

24-48hrs (1-2days)

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19
Q

A Jennerian vaccine named for Edward Jenner in 1796(1798)

A

Vaccinia

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20
Q

Considered a bioterrorism agent

21
Q

Smallpox is caused by Variola virus characterized by

A

Vesicular and pustular eruption

22
Q

Causative agent: Variola Virus
* Centrifugal distribution
* Most dense on face and
extremities
* Lesions appear during a 1– 2 day
period
* Lesions evolve at the same rate

A

Classic Smallpox Rash

23
Q

Distribution of chickenpox

24
Q

subtype of ordinary type smallpox rash
* have distinct areas of normal skin between discrete pustules

A

Discrete subtype

25
subtype of ordinary smallpox rash * have a confluent rash on the face but with discrete lesions elsewhere
Semi-confluent subtype
26
Subtype rash of ordinary type smallpox - confluent rash on the face and the extremities
Confluent subtype
27
3 Major Classifications of Smallpox: *More rapidly progressive, malignant disease develops, which is almost always fatal within 5 to 7 days. * Characterized by a severely prostrating prodromal illness with high fever, head ache, back pain, and abdominal pain. * difficult to diagnose, and they are exceedingly
Hemorrhagic
28
3 Major Classifications of Smallpox: characterized by a more abrupt onset of illness and prostration than classical smallpox. * confluent lesions develop slowly, never progressing to the pustular stage, remaining soft, flattened, and velvety to the touch. * Invariably fatal * However, if an individual survives flat smallpox, they rarely experience typical scarring afterward
Malignant (Flat)
29
Causative agent of Alastrim
Variola minor
30
Complication: Chronic Viral Conjunctivitis
Vaccinia Virus
31
derivative of vaccinia virus that has persisted in in India in water buffalo
Buffalopox virus
32
Host reservoir of Monkeypox
Gambian rats
33
caused by an orthopox virus
Monkeypox
34
Monkeypox commonly occurs in
West and central Africa
35
Clades of monkeypox that has the highest fatality rate
Congo Basin Clade
36
Characteristic feature of Monkeypox
Inguinal lymphadenopathy
37
Incubation period of monkeypox
7–17 days
38
The vesicular rash appears about
3-5 days later
39
a close relative to the vaccinia virus used for smallpox vaccination
Cowpox
40
commonly transmitted to farmworkers from cows
Cowpox
41
Cowpox incubation period
9–10 days
42
Cowpox virus can be distinguished from vaccinia virus by
deep red hemorrhagic lesions
43
sheep and goat handlers
orf
44
cows (milker’s node)
Pseudocowpox
45
benign epidermal tumor that occurs only in humans
Molluscum contagiosum
46
oval or brickshaped and measures 230 × 330 nm; it resembles vaccinia
Molluscum contagiosum
47
Africa, mainly in Kenya and the Democratic Republic of congo
Tanapox
48
Tanapox natural host
monkeys
49
causes benign histiocytomas
Yaba monkey tumor poxvirus