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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
All textbooksNorman-McKay 2nd EditionCh. 14 - Biomedical Applications: Vaccines, Diagnostics, Therapeutics, and Molecular MethodProblem 6
Chapter 14, Problem 6

What was the purpose of the practice of variolation?

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Understand that variolation was an early method used to induce immunity against smallpox before the development of the modern vaccine.
Recognize that the practice involved deliberately introducing material from smallpox sores into a healthy person to provoke a mild infection.
Identify that the goal was to stimulate the immune system to develop protection against future, more severe smallpox infections.
Note that variolation aimed to reduce the severity and mortality of smallpox by controlled exposure.
Summarize that the purpose of variolation was to provide immunity by exposing individuals to a less dangerous form of the disease.

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Key Concepts

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

Variolation

Variolation was an early method of immunization against smallpox, involving the deliberate introduction of material from smallpox sores into healthy individuals to induce a mild infection and subsequent immunity.

Smallpox and Immunity

Smallpox is a contagious and often deadly viral disease; surviving an infection typically confers lifelong immunity, which variolation aimed to mimic safely by causing a controlled, less severe infection.
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Historical Significance of Variolation

Variolation was a precursor to modern vaccination, representing a critical step in immunology by demonstrating that exposure to a pathogen could protect against future disease, paving the way for safer vaccines like Jenner's cowpox-based smallpox vaccine.
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Related Practice
Textbook Question

How does an antibody neutralize a virus?

a. By preventing the virus from binding to a receptor protein on a host cell

b. By preventing the virus from injecting its nucleic acid into its host cell

c. By degrading the capsid

d. By inserting holes into the viral envelope

e. By preventing the virus from replicating while inside the host

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Textbook Question

If parents in the United States decline or delay vaccinations for their children because they fear the refuted claim of a link between vaccinations and autism, which of the following is a possible result?

a. A decrease in diagnosis of autism with a decrease of vaccinations

b. An increase in diagnosis of autism with an increase of vaccinations

c. An increase in the administration of subunit vaccines

d. A decrease in herd immunity

e. An increase in public demand for inactivated vaccines

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Textbook Question

What caused thousands of parents in the United States and the United Kingdom to stop vaccinating their children after 1998?

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Textbook Question

Is there a definitive scientific link between autism and vaccines? Support your response with information from the text.

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Textbook Question

Match the pathogen part to the inactivated vaccine:

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Textbook Question

A direct ELISA test is utilized as a pregnancy test because it tests for:

a. Antibodies to the fetus in urine

b. Antibodies to a pregnancy hormone in urine

c. An antigen that recognizes a pregnancy hormone in urine

d. T cells that recognize a pregnancy hormone in urine

e. The presence of a pregnancy hormone in urine

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