A medical technologist used an ELISA test to show that a newborn had antibodies against HIV in her blood. However, six months later the same test was negative. How can this be
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A medical technologist used an ELISA test to show that a newborn had antibodies against HIV in her blood.
However, six months later the same test was negative. How can this be?
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- why can't we use western blotting test as diagnostic test for hiv alone without using ELISA?You performed an elisa test in the lab to detect antibody against HIV in the patients serum. The test was found to be 96% sensitive. What does that mean?If our immune system can recognize any foreign antigen, why is it necessary to vaccinate a person?
- Why might an HIV/AIDS vaccine actually give some people a false sense of security?Beginning in the 1900s how/ where did scientists produce vaccines instead of depending on human bodies to directly produce it?Why do vaccine manufacturers begin with tests on animals or cell lines before moving on to adult human subjects?
- How would a baby benefit from a nursing mother receiving a vaccine? Make sure you include at least two mechanisms of immunity.Why are only very small amounts of antigen injected?You performed an Elisa test in the lab to detect antibody against HIV in the patient's serum. The test was found to be 96% sensitive. What does that mean? A western blot was used on the same sample to confirm, and the test was found to be 99% specific. What does that mean?
- how varicella vaccine works in our body to prevent chicken pox?What are CD4 lymphocytes?What is the relationshipbetween these cells and HIV?How does HIV replicate?This virtual lab was testing for lupus. How is this same tested used to test for the presence of HIV? If the results for an HIV test were the same as in this exercise, what would they indicate about the three patients?