Paramyxoviridae & Filoviridae Flashcards
The World of Animal Health aims to achieve to completely eradicate this disease affecting sheep and goats around the world by 2030
Pesti de petit ruminants (PPR)
True or False. PPR viruses have only one serotype, do not have carrier or reservoir aside from small ruminants.
True.
Causative agent of Newcastle disease
APMV 1
Give 2 OIE listed dss from Genus Morbillivirus
- Peste-des-petits-ruminants virus
- Rinderpest virus
Give 5 OIE listed disease from Family Paramyxoviridae
- NDV
- Hendra virus
- Nipah virus
- PPR
- Rinderpest
Which genus of family paramyxoviridae does not have hemagglutinin protein antigenic property?
Pneumovirus
Which genus of family Paramyxoviridae do not gave neuraminidase protein antigenic property?
Morbillivirus, Pneumovirus
network of rbc’s and viruses formed due to HA protein
Hemagglutination
occurs when virus detaches from rbc’s due to neuraminadase (NA) protein enzymes by breaking the contact of rbc and HA protein
Elution
True or False. Paramyxoviridae are monotypic, which means , antibodies against one virus strain can neutralize all strains of the same species
True.
highly contagious disease of chickens that is characterized by respiratory distress, diarrhea, and neurological signs
Newcastle disease
Give the other names for NDV
Ranikhet Disease, Pseudofowl Pest, Avian Pneumoencephalitis
Severity of the disease NDV is dependent upon?
- age and immune status of the birds
- the virulence of the ND virus
Proteins that are responsible for virus attachment to host cell and infection
- hemagglutinin
- neuraminidase
- fusion proteins
Which of the ND forms have high mortality and present hemorrhagic lesions in git?
Viscerotropic velogenic / Doyle’s form, Asiatic or Exotic ND
Which of the ND forms have high mortality, with respiratory & neurological disease?
neurotropic velogenic or beach’s form
They are less susceptible to NDV but act as carriers.
Sea birds
Zoonotic transmission of NDV occurs through?
Exposure of handlers to infected birds or live viral vaccines
most common route for transmission of NDV
aerosol respiratory infection
True or False. NDV is spread by fomites.
True.
Give the lesions of the velogenic strains of NDV.
- swelling of the head
- petechiae on the mucosa of proventriculus
- ulceration of peyers patches
- edema of interstitial tissue of neck
Samples to be collected on NDV infected live birds
a) Oro-nasal swab
b) Cloacal swab
c) Serum
Vaccine for NDV is administered through?
drinking water, as aerosols
A disease unique to Australia which killed number of horses and their trainer
hendra virus disease
Reservoir hosts of Hendra virus
fruit bats
these virus utilizes bats as reservoir hosts but excrete the virus through urine
Nipah viruses
pathogenic effects of Nipah viruses to pigs
pneumonia & encephalitis
Source of zoonotic transmission of Nipah virus in the Philippines
eating of undercooked carcass of sick horses
drugs used in humans to reduce fatalities caused by Nipah viruses
ribavirin
it is also known as Hard pad disease or Carre’s disease
Canine distemper virus disease
2 stages of CD disease
- mucosal stage
- neurologic phase
Recovered dogs from CD have shown this abnormalities
teeth abnormalities (enamel hypoplasia), hyperkeratosis
CDV forms a viral triad with which other 2 viruses? Name them.
- Rinderpest virus
- Measles virus
Lab test recommded by OIE for CDV confirmation
flourescence antibody test
This is the first virus eradicated worldwide of veterinary importance
Rinderpest virus
Give the other names of RP virus
CAttle plague, Contagious Bovine Typhus, Steppe Murein
Natural hosts of RP virus
domesticated and wild even-toed ungulates
route of entry of RP virus
inhalation
