Reoviridae Flashcards
reoviridae meaning
reo - respiratory enteric orphan
morphology
segmented dsRNA, naked, double icosahedral capsid
resistance
(naked) strong: rota, orthoreo
weaker: orbi, colti (arboviruses, mosquitos/ticks)
replication
baltimore III - viral transcriptase
antigenic properties
good antigens - cross reactions
the 4 genera of reoviridae
orthoreovirus
orbivirus
coltivirus
rotavirus
orthoreovirus genus: its 2 virus species
mamillian reoviruses
avian reovirus
mamillian reoviruses: its genus, symptoms, host range
mild enteric and respiratory disease (pneumoenteritis)
Euryxenous - unrelated hosts, wide host range!!
avian reovirus: its genus, symptoms
helicopter disease
- arthritis/tenosynovitis in chickens
orbivirus; its 6 virus species
ND!African horse sickness ND!bluetongue sickness ND!ibaraki disease epizootic hemorrhagic disease ND!equine encephalosis virus
african horse sickness species: which genus, symptoms
orbivirus
- edema, hemorrhage, pneumonia
- arbovirus, high mortality rate
bluetongue virus: genus and symptoms
orbivirus genus
- cyanosis
- edema in sheep and cattle
- arbovirus
ibaraki disease: genus, symptoms
orbivirus genus
- similar to bluetongue (haemorrhagic)
- cause abortion
- epizootic haemorrhagic disease (spread from animal to human - then spread rapidly within population)
epizootic haemorrhagic disease: genus and symptoms
orbivirus genus
- affects deer
- similar to bluetongue
- epizootic haemorrhagic disease (spread from animal to human - then spread rapidly within population)
colti virus genus: virus species, symptoms
colorado tick fever virus
- human fever, rash
- rodents as carriers
- arthropod born in ticks and mosquitos
