Ch. 14 - Biomedical Applications: Vaccines, Diagnostics, Therapeutics, and Molecular Method

Norman-McKay- Microbiology: Basic and Clinical Principles 2nd Edition

Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Not the one you use?Change textbook

Norman-McKay 2nd Edition

Ch. 14 - Biomedical Applications: Vaccines, Diagnostics, Therapeutics, and Molecular Method

Problem 12

Chapter 14, Problem 12

Place the following steps in order for a neutralization test:
a. Incubate cell culture for a few days
b. Add suspected infecting virus to the patient's serum
c. Inspect cell culture for viral infection
d. Extract serum from patient
e. Mix patient serum with virus and add the mixture to a cell culture

Verified step by step guidance

Step 1: Extract serum from the patient to obtain antibodies that may neutralize the virus. This corresponds to step d.

Step 2: Add the suspected infecting virus to the patient's serum to allow any antibodies present to bind and neutralize the virus. This corresponds to step b.

Step 3: Mix the patient serum-virus mixture and add it to a cell culture to observe if the virus can infect the cells. This corresponds to step e.

Step 4: Incubate the cell culture for a few days to allow time for viral infection to develop if the virus is not neutralized. This corresponds to step a.

Step 5: Inspect the cell culture for signs of viral infection, such as cytopathic effects, to determine if neutralization occurred. This corresponds to step c.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Neutralization Test Purpose

A neutralization test is used to detect the presence of specific antibodies in a patient's serum that can neutralize a virus, preventing it from infecting cells. This test helps confirm viral infections by demonstrating antibody-virus interactions.

Role of Patient Serum and Virus Interaction

Patient serum contains antibodies that may bind to and neutralize the virus. Mixing the serum with the suspected virus allows antibodies to interact with the virus before exposure to cell culture, which is critical to assess if neutralization occurs.

Cell Culture and Viral Infection Observation

Cell cultures provide a controlled environment to observe viral infection. After incubation with the serum-virus mixture, the culture is monitored for cytopathic effects or viral growth, indicating whether the virus was neutralized by antibodies in the serum.

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