Circoviridae-Poxviridae Flashcards
affects young birds worldwide, resulting to aplastic anaemia and generalized lymphoid atrophy
CAV
etiologic agent of PMWS and PDNS
porcine parvovirus
major cause SMEDI syndrome
porcine parvovirus
spread slowly, cause enlargement of infected cells, hence their common name cytomegaloviruses
betaherpesviruses
establish latent infections in lymphocytes
gammaherpesvirus
transmission of herpesviruses
respiratory and genital secretions
an important cause of reproductive failure in pigs
porcine parvovirus
etiologic agent of Infectious bovine rhinotracheitis
bovine herpesvirus 1
etiologic agent of malignant catarrhal fever in cattle
ovine herpesvirus 2, alcelaphine herpesvirus 1
Causes Aujeszkys disease in pigs
porcine herpesvirus 1
causative agent for inclusion body rhinitis in pigs
porcine herpesvirus 2
Causes ulcerative mammillitis in temperate regions and pseudo lumpy skin disease in tropical and subtropical regions
bovine herpesvirus 2
which herpesvirus can cause neurological disease in horses worldwide
equine herpervirus 1
pathogenesis of feline herpesvirus 1
viral rhinotracheitis
aetiologically implicated in equinesarcoids
Bovine papillomavirus 1
rapid spread, establishing latent infections in neurons located in sensory ganglia
alphaherpesviruses
BPV 1 in cattle main target sites
head, neck, penis
which herpesvirus cause rhinopneumonitis in young horses and sporadic abortion
equine herpesvirus 4
BPV 2 pathogenesis
bladder neoplasia, enzootic hematuria
Causes encephalitis in calves
bovine herpesvirus 5
cause rice grain type of papilloma in teats and udder of cattle
BPV 5
equine papillomavirus 1 mainly cause these areas
lips and nose
etiologic agent for ICH
canine adenovirus 1
etiologic agent for mild venereal infection or coital exanthema
equine herpesvirus 3
involved in infectious tracheobronchitis or kennel cough
CAV 2
cause frond type of papilloma in the teats of the cow
BPV6
pathogenesis of avian adenovirus
IBH, egg drop syndrome
virus associated with quial bronchitis, inclusion body hepatitis and hepatitis hydropericardium syndrome
fowl adenoviruses
virus with complex symmetry
Poxviridae
poxvirus of insects
Entomopoxvirinae
poxvirus of vertebrates
chordopoxvirinae
etiologic agent of mareks disease
gallid herpesvirus 2
principal incidental hosts of cowpox virus
cats
pathogenesis of camelpoxvirus
systemic infection with typical fox exanthema
egg drop syndrome in laying hens
duck adenovirus A
causes milkers nodules
pseudocowpox virus
what are the four poxviruses transmissible to humans
Cowpox, Pseudocowpox, BPSV, Orf virus
which virus cause marble spleen disease
in pheasants
turkey adenovirus
lumpy skin disease of genus Capripoxvirus is endemic in which country
Africa
cause mild skin disease transmitted by pig louse known as Haematopinus suis
swinepox virus
2 forms of fowl pox virus
Cutaneous and diphtheritic form
fowlpox is transmitted by
biting arthropods
Used as recombinant virus vector vaccine for rabies
vaccinia virus
used for biological control of rabbits in several countries
myxoma virus
demonstration of these inclusion bodies during histology examination of cytoplasm is confirmatory for fowl pox
Bollinger bodies and borrel bodies
main organs affected by pox virus
upper digestive and respiratory tracts
incubation period of orf virus
4 to 7 days
what are the suitable samples for diagnosis of ASFV
blood, serum, tonsil, kidney, spleen and lymph nodes
chronic cases of ASF is largely confined to
respiratory tract
other names of orf virus
contagious pustular dermatitis, contagious ecthyma virus
where does ASF virus initially replicate before spreading to draining lymph nodes
pharyngeal mucuos membrane, tonsils
prominent feature of pox virus infections
skin lesions
incubation period of ASF virus
4 to 19 days, 5 to 7 in acute cases
important mechanism of spread of ASF internationally
feeding uncooked swill
first ASF outbreak in the Philippines date and location
Rizal province, July 25, 2019
lesions of orf virus is seen not only lips and muzzle but also in these parts of the body
feet, genitalia, teats
these mammalian hepadnaviruses are 60 percent genetically identical
Hepatitis B and Woodchuck Hepatitis virus
when was ASF detected in cured pork items in the PH
Oct. 24, 2019
hepadnavirus pathogenic to humans
Hepatitis B virus
ASF primary replication sites
lymphoreticular system
disinfectant which can destroy infectivity of ASF
paraphenylphenolic
pathogenesis of the haemorrhages of ASF appears to be largely related to the development of
DIC, destruction of megakaryocytes
These viruses differ from other DNA viruses by synthesizing their DNA by copying RNA using reverse transcriptase
Hepadnaviruses
Give the 3 enveloped DNA viruses of veterinary importance
Herpesviridae, Asfarviridae, Poxviridae
What are the 2 enveloped, icosahedral DNA viruses?
Asfarviridae, Herpesviridae
Give the two double stranded DNA viruses of veterinary importance
Papovaviridae, Adenoviridae
Control of porcine circovirus
Biosecurity, vaccine, passive immunity from vaccine to piglets
Which of the DNA viruses are labile in the environment?
Herpesviridae
Transmission of herpesvirus
- aerosol
- semen (natural or AI)
- aborted fetus
clinical condition caused by feline herpesvirus 1
viral rhinotracheitis
virus may cause malignant transformation after ingestion of bracken fern
BPV 4