PATHOLOGY MCQ
IMMUNE RESPONSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is no vaccine against the common cold because:
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Colds are caused by bacteria so we can use antibiotics to treat them.
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The cold virus mutates too quickly for a vaccine to be effective
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Colds are not usually serious enough for it to be worthwhile to develop a vaccine.
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Colds are not infectious so it doesn’t matter.
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Explanation:
Detailed explanation-1: -A vaccine to prevent the common cold has been difficult to make, primarily because there are more than 200 different varieties of viruses that can cause colds.
Detailed explanation-2: -Most vaccines work by creating antibodies-Y-shaped proteins-that block the disease agent’s own proteins. While viruses have only handful of target proteins, bacteria have up to 6, 000 and parasites even more, noted Dr. Paul A. Offit, director of vaccine education at the Children’s Hospital of Philadelphia.
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