Deck 5 Flashcards
The positive result in haemagglutination inhibition test (HIT) is:
a) haemolysis
b) sedimentation of erythrocytes
c) colour change
sedimentation of erythrocytes
define a polyvalent vaccine
contains 2 or more strains of the same antigen
Tricomponental foci of infectious diseases are divided into:
a) synanthropic, interhostal, recipiental
b) vector, interhostal, postinterhostal
c) interhostal, synanthropic, vecto
vector, interhostal, postinterhostal
eradication of infectious disease means
reduction of an infectious diseases prevalence in the global host population to zero
what is surveillance
collection and analysis of data on disease occurrence. the main purpose is to detect trends and changes in the distribution of the disease
monovalent vaccine
contains only 1 strain of the antigen
Tube serum agglutination test is it a quantitative or qualitative test?
a) quantitative
b) qualitative
quantitative
what are the rules of packing infectious material for the lab
rule of 3 layers
1. impermeable glass, plastic material which must be possible to close tightly
2. absorbing material
3. outer container case
what is conjugation
chemical reaction between Ig of serum and fluorochrome
hybridisation probe
a fragment of DNA/RNA of variable length which is used in DNA/RNA samples to detect sequences that are complementary to the sequence in the probe
it is part of the microorganism genome cleaved by restriction endonucleases, cDNA, synthetic oligonucleotides and RNA probes
can either be radioactive or non-radioactive
What is secondary infection?
a) Mo and multiplication
b) Mo and no multiplication
Mo and no multiplication
natural focus studies
agents, hosts, vectors, recipient, environment
Type of carnivore placenta:
a) endothelial
b) epithelial
c) hemi
endothelial
Glucan is which type of immune promotor?
a) biological
b) synthetic
biological
what is the wavelength of UV light
120-380 nm
