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RNA viruses

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jatadescargas's version from 2016-02-16 22:24

Section

Question Answer
Reoviruses EnvelopeNo
Picornaviruses RNA structureDS linear 10–12 segments
Picornaviruses Capsid symetryIcosahedral (double
Medical importanceColtivirusa —Colorado tick fever Rotavirus—#1 cause of fatal diarrhea in children
Picornaviruses EnvelopeNo
Picornaviruses RNA structureSS ⊕ linear
Picornaviruses CapsidIcosahedral
Picornaviruses Medical ImportancePoliovirus—polio-Salk/Sabin vaccines—IPV/OPV Echovirus—aseptic meningitis Rhinovirus—“common cold” Coxsackievirus—aseptic meningitis; herpangina (mouth blisters, fever); hand, foot, and mouth disease; myocarditis; pericarditis HAV—acute viral hepatitis PERCH
Hepevirus EnvelopeNo
Hepevirus RNA SS ⊕ linear
Hepevirus CapsidIcosahedral
Hepevirus Medical ImportanceHEV
Caliciviruses envelopeNo
Caliciviruses RNASS ⊕ linear
Caliciviruses capsidIcosahedral
Caliciviruses Medical importanceNorovirus—viral gastroenteritis
Flaviviruses envelopeYes
Flaviviruses RNASS ⊕ linear
Flaviviruses CapsidIcosahedral
Flaviviruses Medical importanceHCV Yellow fevera Denguea St. Louis encephalitisa West Nile virusa
Togaviruses envelopeyes
Togaviruses RNASS ⊕ linear
Togaviruses capsidIcosahedral
Togaviruses medical importanceRubella Eastern equine encephalitisa Western equine encephalitisa
Retroviruses EnvelopeYes
Retroviruses RNASS ⊕ linear 2 copies
Retroviruses CapsidIcosahedral (HTLV), complex and conical (HIV)
Retroviruses Medical ImportanceHave reverse transcriptase HTLV—T-cell leukemia HIV—AIDS
Coronaviruses EnvelopeYes
Coronaviruses RNASS ⊕ linear
Coronaviruses CapsidHelical
Coronaviruses MEdical importance“Common cold,” SARS, MERS
Orthomyxoviruses EnvelopeYes
Orthomyxoviruses RNASS ⊝ linear 8 segments
Orthomyxoviruses capsidHelical
Orthomyxoviruses medical importance Influenza virus
Paramyxoviruses EnvelopeYes
Paramyxoviruses RNASS ⊝ linear Nonsegmented
Paramyxoviruses CapsidHelical
Paramyxoviruses Medical ImportancePaRaMyxovirus: Parainfluenza—croup RSV—bronchiolitis in babies; Rx—ribavirin Measles, Mumps
Rhabdoviruses EnvelopeYes
Rhabdoviruses RNASS ⊝ linear
Rhabdoviruses CapsidHelical
Rhabdoviruses Medical Importance Rabies
Filoviruses envelopeYes
Filoviruses RNASS ⊝ linear
Filoviruses CapsidHelical
Filoviruses Medical Importance Ebola/Marburg hemorrhagic fever—often fatal!
Arenaviruses EnvelopeYes
Arenaviruses RNASS ⊕ or ⊝ circular 2 segments
Arenaviruses CapsidHelical
Arenaviruses Medical Importance LCMV—lymphocytic choriomeningitis virus Lassa fever encephalitis—spread by rodents
Bunyaviruses EnvelopeYes
Bunyaviruses RNASS ⊝ circular 3 segments
Bunyaviruses CapsidHelical
Bunyaviruses Medical Importance California encephalitisa Sandfly/Rift Valley feversa Crimean-Congo hemorrhagic fevera Hantavirus—hemorrhagic fever, pneumonia
Delta virus EnvelopeYes
Delta virus RNASS ⊝ circular
Delta virus CapsidUncertain
Delta virus Medical ImportanceHDV is a “defective” virus that requires the presence of HBV to replicat
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