Deck 2 Flashcards
(20 cards)
epizootiological triad
animal population, aetiological agent
+ environmental factors
diseases - way of transmission -
● Horizontal
▪ Direct
▪ Indirect vehicle or vector
● vertical
● primary = direct contact, trasnplacental
● secondary = from environment, other sources
what causes strangles
streptococcus equi subsp. equi
what causes FMD
aphthovirus picornavirus
leptospirosis reservoir
rodents
what causes bluetongue
orbivirus reovirus
orbivirus reovirus
- direct - oral
what species is Aujeszky disease fatal
dogs
what is principle of AGID
● pricipitation in agar - incubation for 24hrs
● +ve = precipitation line
epizootic process
● Biological, dynamic and multifactorial phenomenonbased on continuous interaction among the animalpopulation, etiological agents and environment.
● Epizootiological chain: circulation of aetiological agentsin animal population, repeating and continuing processof aetiological agent transmission among susceptible hosts
what causes african horse sickness
orbivirus reoviridae
what causes fowl cholera
pasteurella multocida
transmission of FIV
biting - saliva, vertical
Reservoir in west nile virus
birds
most susceptible to tetanus
horse/lambs
samples for paratuberculosis
faeces
Brucella culture agar
blood agar
division of cell culture growth methods
monolayer, suspension, microcarrier
agent for bovine viral diarrhoea
pestivirus,
flaviviridae
does blocked ELISA cause a colour change
yes
