Deck 6 other qs asked earlier Flashcards
Define abortive infection.
Disease develops but stops at prodromal stage, initiate immune
system but it is recognized by memory cells of the immune system.
Stages of epizootic process
Inter-epizootic (latent) Pre-epizootic stage (awakening period),
ascending stage, culmination stage, descending, post-epizootic stage.
Define indirect transmission
The passage of infectious agent between individuals through the medium
of inanimate or animate objects. Period betw contamination of the object
and subsequent exposure of susceptible individuals is highly variable.
Define a panzootic process
A process occurring over a wide area and subsequently affecting a
large proportion of the population
Methods used in epizootiology.
Diagnostic, Descriptive, Analytical, Statistical, Experimental, Theoretical.
Cyclozoonoses require.
More than one vertebrate host
Synthetic immunomodulators are:
a. Glucans
b. Clyclophosphamide
c. Levamizole, Isoprinosine
c. Levamizole, Isoprinosine
The positive result in haemagglutination inhibition test is:
a. Haemolysis
b. Sedimentation of erythrocytes
c. Color change
b. Sedimentation of erythrocytes
CAMP test is used for detection of
a. Salmonella typhimurium
b. Streptococcus agalactiae
b. Streptococcus agalactiae
For detection of antibodies we use
a. Sandwich ELISA
b. Indirect ELISA
c. Competitive ELISA
b. Indirect ELISA
PCR is used for
Detection of etiological agent nucleic acids
Define a polyvalent vaccine
Contains two or more strains of the same antigen
Triocomponental foci of infectious diseases are divided into
Vector, interhostal, postinterhostal
Eradication of infectious disease means:
Reduction of an infectious disease’s prevalence in the global host
population to zero
Method for detecting prions
a. Western blot
b. iqPCR
c. IFM
b. iqPCR
