A: Vaccine against AIDS has not been made in | vedclass

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Question

(A) The Assertion is correct because,despite extensive research,no effective vaccine against $AIDS$ has been developed yet.The Reason is also correct

Vedclass · Accepted Answer

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

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(A) The Assertion is correct because,despite extensive research,no effective vaccine against $AIDS$ has been developed yet.The Reason is also correct because $HIV$ is a retrovirus with a high mutation rate,particularly in its envelope proteins $(gp120)$.This rapid mutation leads to the formation of numerous genetic subtypes and variants,which makes it extremely difficult for the immune system to recognize the virus and for scientists to design a universal vaccine that can provide long-term protection.Therefore,the Reason correctly explains why the development of an $AIDS$ vaccine is challenging.

$A$: Vaccine against $AIDS$ has not been made in spite of repeated attempts.
$R$: $HIV$ has the ability to mutate to form several subtypes.

Similar Questions

In $AIDS$,the number of which type of $T$-lymphocytes decreases?

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In the given flow diagram,the replication of a retrovirus in a host is shown. Observe and answer the following questions.
$(a)$ Fill in $(A)$ and $(B)$.
$(b)$ Why is the virus called a retrovirus?
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In India,the $HIV$ virus was first reported in:

What is the full form of $AIDS$?

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$A$: Vaccine against $AIDS$ has not been made in spite of repeated attempts.$R$: $HIV$ has the ability to mutate to form several subtypes.