Answer Posted / guest
An indirect enzyme-linked immunosorbent assay (ELISA) for
the detection of Brucella abortus antibodies in bovine bulk
milk samples was evaluated. About 31 individual milk
samples from B. abortus infected cows were diluted into
bulk milk from a brucellosis free herd. Individual milk
samples obtained from 96 negative or positive herds to
ELISA or Brucella ring test (BRT), were tested by ELISA.
All positive cows were bled and serum samples were tested
by the complement-fixation test (CFT) which was considered
the definitive test. A herd was considered infected if at
least, one cow was positive in the CFT. Four samples were
negative in the BRT at the dilution 1:10 but positive in
the ELISA. For samples positive in both tests, BRT titers
ranged from 1:10 to 1:480 while ELISA titers ranged from
1:10 to 1:3200.Using bulk milk samples, the sensitivity of
the ELISA (98.1%) was higher than the BRT (72.2%) but the
specificity of BRT (90.5%) was not statistically different
(P=1.0) from the ELISA (88.1%). The implications of the
results for brucellosis control are discussed.
| Is This Answer Correct ? | 9 Yes | 9 No |
Post New Answer View All Answers
Why did you choose BSC with Microbiology after your diploma in pharmacy and than MBA ? You also could do B.pharmacy and MBA?
Which are the positive and negative controls for gram stain?
Describe the Reed and Muench Method ?
Which bacteria do not have a lipopolysaccharide outer layer, but do have teichoic acids attached to their cell walls gram positive or gram negative?
Describe the adeno-associated virus packaging ?
What is the procedure of anti-viral test ?
Describe the infectious cycle of a negative strand RNA virus?
What is the Immuno EM for P. falciparum ?
What is the importance of Vibrio anguillarum ?
What is the simple method for isolating parasite DNA from clinical samples?
Which are the alternatives used in gram stain?
How to stain bacteria endospores using fluorescent stain ?
How to search specific Cell line ?
Explain the Phosphate estimation?
What is meant by Plate Counting 101 ?