Deck 5 Flashcards
Division of media used for cell culture
Liquid and solid
In blocking ELISA positive result is:
no colour
Give an example of facultative pathogens:
Bacteria: Salmonella, Staphylococcus spp., Listeria spp., Pseudomonas aeruginosa
Animal notifiable diseases are reported to:
World organisation for animal health
What are the stages of epizootic process?
Interepizootic
Preepizootic
Ascending
Culmination
Descending
Postepizootic
What is epizootiological triad?
Animal population, etiological agents and environmental factors
What is an abortive infection?
Infection that disappears after prodromal period
Who can enter biosafety 3 laboratories?
Authorized staff only, and their stay is controlled and restricted to necessary time
List 3 methods alternative to use of living laboratory animals:
Chorioallantoic membrane (bird embryos and associated tissues)
Cell cultures
Tissue cultures
Organoids
Yeasts
Computer simulations
What are disadvantages of the chorioallantoic membrane method?
Physiology of mammals can be different to that of birds, some avian reagents are hard to obtain, vasculogenesis
What does confluence describe in the context of cell cultures?
Proliferation under the appropriate conditions until they occupy all the available substrate
Sabourad’s glucose agar is used for cultivation of:
Yeasts
PCR methods are used for:
Direct detection of pathogen
Cytopathic effect is:
Destruction of the cells after virus inoculation
What are the main reagents in ELISA?
Antigen
Antibody
Enzyme
Chromogen
Explain the term ‘‘acquire specific active natural immunity’’:
Immunity acquired after infection
Explain the term ‘‘acquire specific passive natural immunity’’:
Immunity acquired via colostrum, transplacental
Explain the term ‘‘acquire specific passive artificial immunity’’:
Immunity acquired through hyperimmune serum
Stages of epizootic process are:
Apparent
Inapparent
Latent
Grades of epizootic process are:
Interepizootic
Preepizootic
Ascendent
Culmination
Descended
Postepizootic
Primary source of infectious diseases is:
Where the etiological agent survives and multiplies (animal, human, vector etc.)
Secondary source of infectious diseases is:
Where the etiological agent survives but does not replicate
Abortive infection is:
Infection disappearing after the prodromal period
Molecular epizootiology is based on knowledge from:
Epizootiology and molecular biology
Hazard in epidemiology is defined as:
Set of circumstances that could lead to harm, such as presence of pathogens, inappropriate storing of food, chemicals, electricity
Descriptive methods in epizootiology is based on:
Collection, compilation and processing results of diagnostic activities
Analytical methods in epizootiology are based on:
Evaluation of the true epizootiological situation and decision for epizootiological strategy, programs and measures
Pandemic/panzootic diseases occur in:
limited time in UNlimited area
Epidemic/epizootic diseases occur in:
Limited time, limited area
