Why is the Widal Test performed? What disease does it indicate? Is the Widal test reliable? Enumerate the different bacteria that can cause false positive and false negative Illustrate how the antigens aggregate in the Widal Test
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- Why is the Widal Test performed? What disease does it indicate?
- Is the Widal test reliable? Enumerate the different bacteria that can cause false positive and false negative
- Illustrate how the antigens aggregate in the Widal Test
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- Discuss the difference between the nontreponemal agglutination test and the treponemal agglutination test. pls make it organize and if possible do it in table form to really show the difference, but if not just make it comprehensive and detailAn ELISA was performed on the sera of three patients to detect antibody against varicella (the chickenpox). Give the titer results shown in the answers, which patient's serum had the most anti-varicella antibody? There is not enough information to answer the question. Patient 2, dilution 1:30 O Patient 1, dilution 1:2,000 O Patient 2, dilution 1:400A phagehunter obtains the following results from a full plate titer experiment. Use the information below to estimate how many plaques should be on the webbed plate. Plate Negative control 100 # of Plaques 10-1 Fully cleared 10-2 Fully cleared Fully cleared 103 104 Webbed 10-5 Too many to count 10-6 188 10-7 10-8 18 lo Type your answer..
- What other test can be used to confirm the results obtained for a TEV infected tomato in an ELISA test? Name and very briefly describe one other test. Give the reason for your choice.Give the full form of ELISA.which disease can be detected using it?Discuss the principle underlying the test.What is the microbiology laboratory test that Identifies Pseudomonas masseli and what are the results of the tests that identify it? please include your sources in MLA. examples are hemolytic tests, lipid concentrations, genomic tests etc.
- 7 mL of a 1:50 dilution is needed to run a specific serological test. How much serum and how much diluent are needed to make this dilution? A 1:5 dilution of patient serum is necessary to run a serological test. There is 0.2 mL of serum that can be used. What amount of diluent is necessary to make this dilution using all of the serum?The direct ELISA test requires only one antibody only one antigen both primary and secondary antibody only secondary antibody conjugated with enzyme systemWhat is the microbiology laboratory test that Identifies Pseudomonas putida and what are the results of the tests that identify it? please include your sources in MLA. examples are hemolytic tests, lipid concentrations, genomic tests etc.
- Why are agglutination tests so widely used in clinicaldiagnostics? How are fluorescent antibodies used todiagnose diseases? What advantages do immunofluorescenttechniques have over traditional culturing?Depending on the purpose, the typhoid fever can be diagnosed in the laboratory by either of the following method, i) Widal, ii. Blood culture and iii. Nucleic acid based identification method. Write a brief essay comparing these three diagnostic tests. Your answer must contain the basis of identification of each test, what does it mean by positive and negative results and which test do you think to be useful for the identification of active patient and which test is/are useful for the screening of previously infected case. Which test is prerequisite to perform the antibiotic susceptibility pattern?What advantages does the agglutination test have over the definitive S. aureus test?
