RNA Viruses

Question 1

Only RNA virus that is dsRNA?

Answer 1

Reovirus

Question 2

Only virus that is diploid?

Answer 2

Retrovirus (have 2 identical ssRNA)

Question 3

Only 2 RNA viruses that do not replicate in cytoplasm?

Answer 3

Infleunza and retrovirus

Question 4

Nonenveloped RNA viruses?

Answer 4

Calicivirus, Picornavirus, Reovirus, Hepevirus (CPR and hepe)

Question 5

10-12 segments?

Answer 5

Reovirus

Question 6

8 segments?

Answer 6

Orthomyxovirus

Question 7

3 segments?

Answer 7

Bunyavirus

Question 8

2 segments?

Answer 8

Arenavirus

Question 9

Coltivirus (Colorado tick fever) and rotavirus?

Answer 9

Reovirus

Question 10

Picornaviruses?

Answer 10

Polio, Echo, Rhino, Coxsackie, HAV (PERCH)

Question 11

Norovirus?

Answer 11

Calicivirus

Question 12

Togaviruses?

Answer 12

Rubella, Eastern/Western equine encephalitis

Question 12

Retroviruses?

Answer 12

HIV, HTLV

Question 13

Influenza virus?

Answer 13

Orthomyxovirus

Question 14

Paramyxoviruses?

Answer 14

Parainfluenza, RSV, measles and mumps

Question 15

Ebola/Margburg hemorrhagic fever?

Answer 15

Filovirus

Question 16

Arenaviruses?

Answer 16

LCMV (lymphocytic choriomeningitis virus), Lassa fever encephalitis

Question 17

Bunyaviruses?

Answer 17

California encephalitis, Sandfly/Rift Valley fevers, Crimean-Congo hemorrhage fever, Hantavirus

Question 18

1 cause fatal diarrhea in children?

Answer 18

Rotavirus

Question 19

Common cold?

Answer 19

Rhinovirus, coronavirus

Question 20

Nonsegmented RNA virus?

Answer 20

Paramyxoviruses

Question 21

Helical RNA viruses?

Answer 21

Corona, Orthomyxo, Paramyxo, Bunya, Arena, Rhabdo, Filo, Delta (COP BARF)

Question 22

Which is the only + ssRNA helical virus?

Answer 22

Corona

Question 23

Which are the only RNA viruses that are circular (and not linear)?

Answer 23

Bunya, Arena, Delta (BAD)

Question 24

Segmented RNA viruses?

Answer 24

Bunya, Orthomyxo, Arena, Reo (BOAR)

Question 25

What causes antigenic shifts?

Answer 25

Segmented viruses–can undergo reassortment

Question 26

High fever, black vomit, jaundice?

Answer 26

Yellow fever

Question 27

Acidophilic inclusions in liver?

Answer 27

Councilman bodies–yellow fever virus

Question 28

Pathophysiology of rotavirus?

Answer 28

Villous destruction with atrophy leads to decreased absorption of Na and water

Question 29

Hemagglutinin?

Answer 29

Promotes viral entry in influenza

Question 30

Neuraminidase?

Answer 30

Promotes progeny virion release in influenza

Question 31

Changes based on random mutation?

Answer 31

Genetic drift

Question 32

Rash starting on head moving down, spares palms/soles, postauricular adenopathy and arthralgias?

Answer 32

Rubella

Question 33

Preventing RSV in preemies?

Answer 33

Palivisumab

Question 34

Surface F protein?

Answer 34

Paramyxoviruses–allows formation of multinucleated cells (syncytial cells)

Question 35

Subacute sclerosing panencephalitis?

Answer 35

Measles (rubeola)

Question 36

Rash starting on face spreading to toes involving palms/soles?

Answer 36

Measles

Question 37

S/S of mumps?

Answer 37

Parotitis, Orchitis, Meningitis (POM-poms)

Question 38

HCV?

Answer 38

Flavivirus

Question 39

Yellow fever?

Answer 39

Flavivirus

Question 40

Dengue?

Answer 40

Flavivirus

Question 41

St. Louis encephalitis?

Answer 41

Flavivirus

Question 42

West Nile virus?

Answer 42

Flavivirus

Question 43

Arboviruses?

Answer 43

Togavirus, Bunyavirus, Flavivirus

Question 44

Transmitted by Aedes mosquito?

Answer 44

Yellow fever