Answer to Question 1
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An antitoxin is an example of passive immunity. Antitoxins contain antibodies to very specific toxins. The antibodies are injected into the system and react with invading pathogens. Active immunity occurs when the body recognizes a foreign protein and begins producing antibodies to react against that specific protein or antigen. Vaccines are immunizations containing weakened or altered protein antigens that stimulate formation of antibodies against a specific disease. They are used to promote active immunity. Antivenin is used to refer to immune sera that have antibodies to venom that might be injected through spider or snake bites.
Answer to Question 2
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Taking thyroid hormone with normal thyroid function results in disruption of the hypothalamicpituita rythyroid control resulting in decreased production of thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH) as the hypothalamus and pituitary sensed the rising levels of thyroid hormone. Because the thyroid was no longer stimulated to produce and secrete thyroid hormone, thyroid levels would actually fall. This would put the patient at greater risk of gaining weight. There is no evidence it would cause heart damage. Because thyroid hormone production is reduced, a state of hyperthyroidism is not induced. Even though the statement that people who are not hypothyroid should not take thyroid hormones is correct, it does not provide enough information to dissuade this patient from a dangerous practice.
Some uses of recombinant DNA technology for making improved vaccines
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Phyllis Schlafly drew much of her support from working-class women who were left vulnerable by the ...
Label used to indicate a class IV controlled substance.