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39 Cards in this Set
- Front
- Back
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All classes of RNA viruses with an icosahedral capsid possess ss-linear +RNA except?
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Reovirus (possess ds-linear, segmented RNA)
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Picornavirus
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- Polio (Gut to Brain)
- Hepatitis A (Liver) - Rhinovirus (URT) - Meningitis - Hand-foot-and-mouth Disease |
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Calcivirus
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- Norwalk Virus ("Cruise-ship Diarrhea, self-limiting and acute)
- Hepatitis E |
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Which class of RNA viruses is very similar to calcivirus and usually affects children?
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Astrovirus (Affects children usually infants resulting in a self-limting form of diarrhea)
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What is the only class of RNA viruses that has a double-shelled capsid and possesses a ds-linear, segmented genome?
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Reovirus - when infects cell outer shell dissolves and inner shell has portals that release its RNA.
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Reovirus
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- Reovirus
- Rotavirus (Rotaviral diarrhea) |
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Alphaviruses (Togavirus)
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- Rubella Virus
- Western Equine Encephalitis - Eastern Equine Encephalitis - Venezuelan Equine Encephalitis |
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Flavivirus
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- Yellow Fever (Liver Damage)
- Dengue Virus (Hemorrhagic) - West Nile Virus - Hepatitis C |
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Name all the classes of RNA viruses that have an icosahedral capsid?
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- Picornavirus
- Calcivirus - Astrovirus - Reovirus - Alphavirus (Togavirus) - Flavivirus |
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What do all classes of RNA viruses that possess a helical capsid have in common?
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Envelope
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What makes Hepatitis C a difficult virus to treat?
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High Rate of Mutation
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What is the only class of RNA viruses with a helical capsid that has (+)RNA?
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Coronavirus
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Coronavirus
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- Coronavirus
- SARS - Common Cold |
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What does ambisence mean?
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Contains both - and + RNA characteristics
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Bunyavrius
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- Hantaan Virus (URT)
- Korean Hemorrhagic Fever - Lacrosse Fever (epilepsy-like symptoms) |
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Orthomyxovirus
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- Influenza Virus (Influenza A is most important, influenza B less important, and Influenza C is the common cold)
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Paramyxovirus
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- Measles Virus (most infectious disease we know of)
- Mumps (affects parotid gland) - Parainfluenza (croup) - Respiratory Syncitial Disease |
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What does myxo- mean?
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Mucous, both orthomyxovirus and paramyxovirus both affect mucous membranes even though they are not related.
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What does rhabdo- mean?
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Bullet-Shaped
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Rhabdovirus
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- Rabies (Slow virus, so if you get bitten you have days to get to the hospital unless you get bitten in the face).
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Filovirus
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- Ebola (Hemorrhagic Fever, bleed out of every orifice)
- Marburg Virus |
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What two classes of RNA viruses that possess a helical capsid have characteristic ambisense?
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- Bunyavirus
- Arenavirus |
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Ambisense classes of RNA virus will physically bring _________ into the host cell with them?
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RNA-Dependent RNA polymerase
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Arenavirus
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- Lymphocytic Choriomeningitis Virus (From Hamster)
- Lassa Fever |
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What is unique about the replication machinery of retroviruses?
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Reverse Transcriptase (Retroviruses possess reverse transcriptase instead of RNA-dependent RNA polymerase)
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Retrovirus
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- HIV(AIDS)
- HTLV-1 - HTLV-2 |
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Name all the classes of RNA viruses that possess a helical capsid?
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- Coronavirus
- Bunyavirus - Orthomyxovirus - Paramyxovirus - Rhabdovirus - Filovirus - Arenavirus |
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Name all the classes of DNA viruses that possess a icosahedral capsid?
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- Parvovirus
- Hepadnavirus - Papovirus - Adenovirus - Herpes Virus |
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All classes of DNA viruses possess a icosahedral capsid except?
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Poxvirus
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Parvovirus
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- B19 Virus [Slapped Cheek Fever (URI) with flushing and maybe vesicles on hands]
- Fifth's Disease |
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What is the only single stranded DNA virus that was discussed in lecture?
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Parvovirus
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What are the two classes of DNA viruses that possess a circular or partially circular ds-DNA genome?
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- Hepadnavirus
- Papovirus |
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Hepadnavirus
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- Hepatitis B Virus (Affects liver and may result in patient requiring a transplant)
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What is unique about the replication machinery of the class of hepadnavirus?
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Reverse Transcriptase (Hepadnavirus is the only non-retrovirus to possess reverse transcriptase)
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Papovirus
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- Papillomavirus (Chondylomas, warts, cervical cancer)
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Adenovirus
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- Adenovirus (Common Cold)
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Herpesvirus
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- HSVI (Cold Sores)
- HSVII (Genital Warts) - HSVIII (Chicken Pox & Shingles) - HSVIV (Epstein Barr) - HSVV (Roseola - child with horrible fever that breaks out in rash) |
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Poxvirus
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- Smallpox virus
- Vaccinia virus - Monkeypox virus |
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What is unique about the capsid symmetry of DNA virus class Poxvirus?
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Complex, Poxvirus is the only DNA virus that does not possess icosahedral capsid symmetry having a complex capsid symmetry instead.
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