RNA viruses intro Flashcards
influenza A, B, and C is ______. HA attaches to ___________
orthomyxo
upper respiratory tract
we get colds every year because the NA and HA _____. this is called ______ ______
mutate
antigenic drift
HIV is an example of RNA of the _______
retroviruses
in icosahedral RNA viruses, they can be ______ or ________.
naked or enveloped
______ viridae: polio, hepatitis A, Rhino virus, _______
PICORNA
enteroviruses
CALICI viridae: ________
Norwalk
REO viridae:
Rota virus
the forms of naked icosahedral RNA viruses are: ________, ________, and REO
PICORNA
CALICI
the two forms of enveloped RNA viruses are _______ and _______
TOGA and FLAVI
mosquito and rubivirus are the ________ viridae (enveloped)
TOGA
yellow fever, dengue, hepatitis C viruses are of the _______ viridae (enveloped)
FLAVI
TOGA and FLAVI are _______, icosahedral RNA viruses
naked
CORONA viridae are _________ colds
respiratory
BUNYA are the __________ and california encephalitis
hantavirus
ORTHOMYXO are ________ A, B, C
influenza
PARAMYXO are par-influenza, respiratory syncytial virus, ____, and _____
mumps and measles
the RHABDO is ________
rabies
FILO is ________ and marburg (acute hemorrhagic fever)
Ebola
ARENA viridae is lymphocytic ___________
choriomeningitis
largyngotracheobronchitis (aka ______) is from the _______ virus
parainfluenza
the complex coat RNA viruses consists of _______ (HIV)
RETRO
Influenza A, B, and C are _________ viridae
orthomyxo
influenza viruses A, B, and C have glycoproteins: _________ activity (HA), and ________ activity (NA)
hemagglutinin activity and neuraminidase activity
HA can attach to host sialic acid receptors (________________), but antibodies to HA will ______
upper respiratory tract
block
NA disrupts _____ barrier
mucin
in an ________ drift, mutation of NA, HA protect the virus from antibodies
antigenic
in an antigenic _______, there is complete change of NA and HA
shift
Parainfluenza, respiratory syncytial virus, mumps, measles are all __________viridae
paramyxo
the paramyxo viruses absorb into the _________ ______
respiratory tract
the parainfluenza virus is _______viriade. In adults it is an _____, flu-like illness. It causes ______ in children (laryngotracheobronchitis)
paramyxo
URI
croup
parainfluenza virus causes a barking cough through the narrowed, upper _______
airways
respiratory synctyial virus is _______. It causes _______ infections and contains F protein that causes formation of ___________ giant cells
paramyxo
respiratory
multinucleate (syncytial cells)
Respiratoy syncytial virus lacks ____ and _____ glycoproteins
HA and NA
the measles virus is ________. there is a ____ day incubation. Causes _____ spots and rash
paramyxo
10 day
Koplik
arthropod borne viruses, toga, flavi, and bunya are all ________
arboviruses
california encephalitis and rift valley fever are both _________ viridae
bunya
yellow, dengue, and west nile are ______
flavi
rubivirus, WEE, and EEE are _____ (western and easter encephalitis)
toga
the _____ virus is a cause of a cold that is indistinguishable from the _________ common cold
corona
rhinovirus
the corona virus is responsible for ______% of colds
15%
SARS is a ________ virus
corona
the corona virus can progress to severe _____ in 10-20% of cases
dyspnea
rhinovirus is a ________ and is hand to hand spread
pircornaviridae
poliovirus, coxsackie viruses A and B, echovirus, hepatitis A, new enteroviruses are all ______, which are picornaviridae
enterovirus
enterovirus is excreted in _____ and spread by fecal-oral
feces
poliovirus is an _______ of the _______
enterovirus
picornaviridae
fecal-oral transmission and paralysis occurs in _______, which is a ______ (enterovirus)
poliovirus
picornaviridae
Coxsackie viruses A and B (enterovirus) are _____.
picorn
_____ is herpangina - a mild, self-limiting illness characterized by fever, sore throat, small red-based vesicles over the back of the throat
Coxsackie A
Coxsackie B is ________. Fever, HA, pleuritic pain
pleurodynia
Coxsackie A16 occurs in the ____, ____, and mouth 1-2 days after ______
hand
foot
herpangina
________ A and B are associated with myocarditis/pericarditis
coxsackie
echovirus and other _______ are _____viridae and have mild reactions, colds, rashes, aseptic meningitis
enteroviruses
picorn
rotavirus and calciviridae are _______ viruses
diarrhea
rabies is a _______viridae
rhabdo
the _______ virus replicates at the wound bite, then over _____ to a _____ move up nerve axons to the CNS, causing fatal _____
rabies
weeks to a year
encephalitis
DNA viruses are unlike RNA viruses be causes they __________________
cannot be translated directly into proteins
every DNA virus has a + and - strand. the ______ is read to be transcribed into mRNA and the ______ is ignored
positive
negative
PARVO, PAPOVA, and ADENO are all _________, icosahedral _____ viruses
naked
DNA
HERPES and HEPADNA are ______, icosahedral, DNA viruses
enveloped
erythema infectiousum is a ______, DNA
PARVO
human papilloma virus is a ______, DNA
PAPOVA
childhood respiratory cold is an ________, DNA
ADENO
herpes simplex 1&2, varicella, cytomegaloviris, epstein-barr, and human herpesvirus 6 are ______________ icosahedral HERPES
enveloped
hepatitis B is a ________
HEPADNA
POX is ______ envelope. Small pox and molluscum contagious.
complex envelope
viruses can be _______ or non-enveloped. Viral envelopes cover the protein ______, which has the RNA or DNA
enveloped
capside
respiratory syncytial virus occurs in the ________ and _______ in infants and children. A ________ virus
winter and spring
paramyxo
the _______ virus affects upper respiratory tract, also parotitis and orchitis.
mumps
hepatitis B is a _____ virus, where the other 5 are _____ viruses
DNA
RNA
the common cold is cause by _______, which is a ______
rhinovirus
picorn
HSV 1,2, varicella, cytomegalovirus, and epstein-barr are all ______
herpes
molluscum contagiousum is a ______ and is very common. Flesh colored bumps.
poxviridae