Parvoviridae Flashcards
parvo meaning
parvus - small
- one of the smallest viruses!
morphology
linear ssDNA - self priming hairpin ends, icosahedral, naked
resistance
(naked) very strong
replication
baltimore II - cellular polymerase, multiplication in dividing cells(foetus, intestine, bone marrow)
antigenic properties
very good ag’s - long immunity
cross reactions
cross immunity of related viruses - reaction between an antibody and an antigen that differs from the immunogen.
the 2 subfamilies of parvoviridae
parvovirinae densovirinae (infect arthropods so no vet importance)
the 5 genera of parvovirinae
parvovirus amdovirus bocavirus erythrovirus dependovirus
the 4 virus species of parvovirus genus
porcine parvovirus
Canine parvovirus 2
feline planleukoneia
mink enteritis
porcine parvovirus species: symptoms, genus
parvovirus - SMEDI:
- Stillbirth, Mummification, Embryonic Death and Infertility
(preads from foetus to foetus, abortion after last death(mummified foetuses, can identify the first dead foetus)
Canine parvovirus 2 species: symptoms, genus
parvovirus
- very contagious enteric disease* with vometing, dysentery(intestine inflammation)
- destroy int. villi -> bloody diarrhea
- myocarditis in puppies (death y dehydration)
feline planleukoneia species: symptoms, genus
parvovirus
- very contagious enteric disease with vometing, depression and diarrhea
- lymphoid tissue (WBC) -> immunosuppression
mink enteritis species: symptoms, genus
parvovirus
mink kittens - similar to feline planleukoneia
amdovirus genus: disease, symptoms
AMD - Aleutian Mink Disease
- persistant viraemia (virus enter blood)
- > plasmacytosis, hypergammaglobulinaemia
- > heorrage, nephritis
bocavirus genus; its 2 virus species
bo(vine)ca(nine)
bovine parvovirus
canine minute virus
bovine parvovirus species: genus, symptoms
bocavirus
- diarrhea in calves
erythrovirus genus: its 2 virus species
bone marrow -> anemia
1 - B19 virus
2 - simian erythrosis
B19 virus: genus, symptoms
erythrovirus genus
- human transient aplastic virus (decreased erythrocytes)
- foetal wastage
- skin rash!!
dependovirus genus: its 3 virus species
adenoassociated viruses
goose parvovirus
muscovy duck parvovirus
goose parvovirus species: genus and virus aka, symptoms
dependovirus
- Derzsy’s disease
- respiratory disease and enteritis
adenoassociated viruses: genus -> why
dependovirus
- depend on co-infection from adeno/herpes/vaccinia
virus to replicate
