Human Health And Disease Question 96
Question: Read the assertion and reason carefully to mark the correct option out of the options given below:
Assertion : AIDS can be diagnosed immediately after HIV-infection by ELISA test.
Reason : Large number of antibodies are formed spontaneously.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: D
Solution:
Assertion: The assertion is false. AIDS cannot be diagnosed immediately after HIV infection by ELISA test. After a person contracts HIV, their immune system begins to develop HIV antibodies. Most HIV tests, including the ELISA test, check for the presence of these HIV antibodies⁵⁶. However, it can take weeks to months for these antibodies to show up in the blood⁵⁶⁷. Therefore, a person who has contracted the virus and takes a test before this period will usually test negative⁵⁶.
Reason: The reason is also false. A large number of antibodies are not formed spontaneously after HIV infection. The immune system takes time to recognize the virus and produce antibodies against it⁵⁶. This process, known as seroconversion, happens within three to 12 weeks after the initial infection⁶.
BETA
