Term
|
Definition
Herpes = envelope/icosahedral
Adenovirus = no envelope/icosahedral
Papilloma = no envelope/icosahedral
Polyomavirus = no envelope/icosahedral |
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Term
|
Definition
| Poxvirus = unique complex capsid |
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Term
ssDNA
(some viruses packaged with a + strand while others packaged with a – strand) |
|
Definition
Parvovirus = no envelope/icosahedral
(causes Fifths disease w/ red cheeks) |
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Term
| + RNA coding for one-genome-size RNA |
|
Definition
Picornavirus (HAV) = no envelope/ icosahedral
Flavivirus = |
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Term
| + RNA coding for one or more subgenomic mRNAs |
|
Definition
Coronavirus = envelop/helical
Togavirus = |
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Term
|
Definition
| retroviruses (HIV) - envelope, icosahedral |
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Term
| Non-segmented – RNA viruses |
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Definition
Paramyxoviruses = envelope/ helical (e.g. RSV, measles, mumps)
Rhabdovirus (rabies) = envelope/ helical
Filovirus (ebola) = envelope/helical |
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|
Term
Segmented – RNA viruses
(mixing of segments in host cell can make new virions -> pandemics) |
|
Definition
Orthomyxoviruses (influenza A)
- envelope/helical segments
- M2 = ion channel protein
- Acidification of virion via M2 allowing H+ inside -> conformation change of M proteins -> dissociation from NP proteins -> viral genome leaves endosome for cytoplasm
Bunyaviruses
- envelope/helical segments
- arthropod-borne
- encephalitis, hemorrhagic fevers, hantavirus pulmonary syndrome
- NO MATRIX (M) PROTEIN |
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|
Term
|
Definition
Reovirus
Rotavirus
- No envelope/icosahedral
- 40-60% of diarrhea in children <2 years of age
- Most significant cause of severe gastroenteritis in young children (lethal in areas of malnutrition) |
|
|
Term
| Relaxed circular partially duplexed DNA |
|
Definition
| Hepadnaviruses (HBV) -enveloped, icosahedral |
|
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Term
|
Definition
Arenavirus
- Envelope/2 ssRNA circles
- Lymphocytic choriomeningitis (LCM)
- Endemic to tropics of Africa and South America
- Most asymptomatic and cause persistent infections
- Examples: LCM, Lassa |
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