RNA vs DNA viruses Flashcards
DNA viruses (6)
Parvoviridae, adenoviridae, papovaviridae, poxviridae, hepadnaviridae, herpesviridae
RNA viruses (10)
Picornaviridae, togaviridae, coronaviridae, orthomyxoviridae, flavirviridae, retroviridae, paramyxoviridae, rhadoviridae, filoviridae, Reovirdae
Only ss DNA
Parvoviridae
Gastroenteritis, fetal death, fifth disease, human parvovirus, B19
Parvoviridae
Respiratory diseases
Adenoviridae
PA
Papilloma = wartz
PO
Polyoma = tumors
VA
Vacuolation = causes vacuoles in host cell
HPV is in what family?
Papovaviridae
Largest of all the viruses
Poxviridae
Smallpox is aka
Variola
Vaccinia is aka
Cowpox virus
Hep B is under what family?
Hepadnaviridae
Latent viruses that are very large
Herpesviridae
HHV-1 and HHV-2
Simplexvirus; causes cold sores and genital herpes
HHV-3
Varicellovirus; causes chickenpox, shingles
HHV-4
Lymphocryptovirus; EBV: Epstein-Barr virus causes mononucleosis
HHV-5
Cytomegalovirus
HHV-6 and HHV-7
Roseolovirus
HHV-8
Rhadinovirus; causes Kaposi’s sarcoma
HHV-1 through -8 are under what family?
Herpesviridae
Is HHV-2 sexually transmitted?
Yes! Genital herepes.
HHV-2 is dormant in what nerve?
Sacral nerve ganglion.
HHV-1 is dormant in what nerve?
Trigeminal nerve ganglion
Which herpes can cause abortion, mental retardation or defective sight and hearing?
HSV-2. Neonatal herpes
Can cross the placenta and infect fetus (hereps).
HSV-2
PICO=
Very small
4 examples of piconaviridae
Polio
Coxsackieviruses
Enteroviruses
Rhinoviruses
Rhinoviruses
Common cold
Enteroviruses happen where?
Intestine
Enteroviruses example
Hep A- acute hep
TOGA=
Cloaked or enveloped
Togaviridae are transmitted by
Arthopods
2 examples of togaviridae
Arboviruses
Rubiviruses
Arbovirus example
Encephalitis
Rubivirus example
Rubella
rubella is aka
German measles
German measles are transmitted by
Repiratory transmission
COVID and the common cold are under what family?
Coronaviridae
Most distinctive symptom of COVID-19
New loss of taste or smell
Segmented and enveloped RNA family
Orthomyxoviridae
What virus is under orthomyxoviridae?
Influenza
Can infect swine, birds, and horses.
Influenza A
How many segments are in Influenza?
8
Is influenza enveloped?
Yes
What does a segmented genome contain?
8 helical nucelocapsids
Influenza type mainly in animals
B
influenza type mainly in animals and humans
A
most common type of influenza
A
Protein spikes are ______.
Antigenic
Peplomers are aka
Protein spikes
Peplomers are made of
Protein
H=
Hemagglutinin
N=
neuraminidase
Peplomer that is responsible for release from the host cell
N= neuraminidase
Peplomer that is responsible for attachment
H= hemagglutinin
Antigenic drift
Small point mutations
Epidemics
antigenic shift
Less common
Only in influenza A
Major and sudden change in H and/or N creating new strain
Pandemics
“Mixing” bowl
Pigs
Severe viral pneumonia
Come on in few days, death shortly follows
Lungs massively hemorrhaged or filled with fluid
1918 Spanish flu
Induced a cytokine storm
1918 Spanish flu
H1N1 is aka
Swine flu
Swine flu is a strain of
Influenza A
T/F Swine flu had a high mortality rate.
False! Low mortality rate, with high infection rate.
Influenza is positive or negative?
Negative
Treatment for influenza
Tamiflu
neuraminidase inhibitors is aka
Tamiflu
Influenza vaccines are grown in
Eggs
Hep C is under what family?
Flaviviridae
Yellow fever is under what family?
Flavivridae
Retroviridae is positive or negative?
+
Only diploid virus
Retroviridae
HTLV-1
Leukemia viruses
Oncoviruses
RNA tumor viruses
3 examples of retroviridae
Oncoviruses
HTLV-1
HIV
Reverse transcriptase is used in what family?
Retroviridae
“Near” + “mucus”
Paramyxoviridae
3 examples of Paramyxoviridae
Parainfluenza
Mumps
Measles
“Rod”
Rhabdoviridae
Shaped like bullets and spiked envelope
Rhabdovirdiae
Shaped like bullets and spiked envelope
Rhabdovirdiae
Example of rhabdoviridae
Rabies
Once the symptoms appear, 100% mortality rate
Rabies
Segmented and naked RNA
Reoviridae
Only double stranded RNA
Reoviridae
Reoviridae
R=
Respiratory diseases
Reovirdae
E=
Enteric diseases
Reovirdiae
O=
Orphan- not associated with any disease
2 examples of Reoviridae
Rota virus- severe diarrhea in young children
Colorado tick fever virus