Rhabdovirus and Paramixoviruses Flashcards

1
Q

what is the type of virus that rabies is

A

-ssrna like VSV
-non segmented
-cytoplasmic replication

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2
Q

what type of virus are paramyxoviruses

A

-ssrna like mumps and measles
-non segmented
-cytoplasmic replication

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3
Q

rhabdovirus glycoproteins name

A

G

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4
Q

true ro false: rabies looks like a bullet

A

true

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5
Q

true or false: measles has a thicccc membrane

A

false it is floppy

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6
Q

structural proteins of measles

A

HN and fusion protein

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7
Q

true or false: rabies a an old disease

A

true
First described in Mesopotamia in 2300 BC,
rabies has been recognized in humans and
animals for many centuries.

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8
Q

true or false: rabies is always pretty mucvh fatal

A

true

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9
Q

rabies: disease usually occures with the onset of…

A

Disease usually occurs with the onset of an acute
encephalomyelitis, often preceded by periods of
excitement or agitation, and quickly followed by
coma and death.

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10
Q

Hypersalivation and hydrophobia are prominent features oF

A

rabies

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11
Q

how do you get rabies:

A

you get bitten by an animal that has rabies, virus then moves up the PNS into the CNS into the brain

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12
Q

how did Pasteur make his rabies vaccine

A

-In 1881, he began studies of rabies in animals.
-He developed methods of producing attenuated virus preparations
-Progressively drying rabbit spinal cords after experimental infection
-These preparations, when inoculated into animals would protect from challenge with virulent virus without leading to the disease itself
-This was the first artificially produced virus vaccine.
-in 1885 a kiddo was treated with his vaccine and did not get rabies after getting bit by a rabid dog

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13
Q

Where are rabies still prevalent

A

in asia and in africa but in Canada there is pretty much none
-last guy in can dies in 2007

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14
Q

Most common reservoir of rabies

A

silver haired bat

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15
Q

Pathogenic paramyxoviruses

A

-Mumps virus – salivary gland and testicular infection
-Measles virus ‐ which caused around 733,000 deaths worldwide in 2000
-Respiratory syncytial virus (RSV), the major cause of bronchiolitis and pneumonia in
infants and children.
-Human parainfluenza viruses (HPIV) are the second most common causes of respiratory
tract disease in infants and children.

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16
Q

what are Henipaviruses

A

Henipaviruses are zoonotic pathogens, occurring naturally in animal hosts, but also able
to infect humans.

17
Q

where do you get mumps

A

-PAROTID GLAND
-SUBMANDIPULAR GLAND
-subblingual gland
-salivary gland
-balls

18
Q

what is the special quick to measle

A

RNA POL BINDS TO A CISTRON ONE AT A TIME

19
Q

order of the measles proteins made

A

N, P, M, F, G, L

20
Q

Measles:Pausing

A

Pausing
‐ polyadenylation at poly(U) tract
by repetitive retranscription
Attenuation
‐ polymerase falling off template
during “stuttering” process

21
Q

true or false: rna pol makes subgenomic rna for rabies

A

true

22
Q

Features that make VSV an excellent candidate as a vaccine vector

A

-It is a weak human pathogen does not undergo genetic recombination or genomic
reassortment and has no known transforming properties.
-VSV does not integrate any of its genomic material into host cell.
-As a vaccine strategy, VSV is known to elicit strong humoral and cellular immune
responses in vivo and naturally infects at mucosal surfaces.
-This offers an alternative less invasive intranasal route of immunization that has been
shown to induce both mucosal and systemic.
-Recombinant VSVs can be generated to accommodate large foreign gene inserts or
multiple genes into their genomes.
-VSV grows to high titers in vitro, thus facilitating rapid purification of large amounts of
virus and viral proteins.